deleted file mode 100644
--- a/testing/web-platform/meta/web-animations/animation-model/animation-types/discrete-animation.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[discrete-animation.html]
-  type: testharness
-  [Test discrete animation is used only for pairs of values that cannot be interpolated]
-    expected:
-      if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-

--- a/testing/web-platform/meta/web-animations/animation-model/animation-types/interpolation-per-property.html.ini
+++ b/testing/web-platform/meta/web-animations/animation-model/animation-types/interpolation-per-property.html.ini
@@ -96,23 +96,16 @@ prefs: [layout.css.contain.enabled:true,
 
   [border-top-style uses discrete animation when animating between "dotted" and "solid" with keyframe easing]
     expected:
       if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
 
-  [clip uses discrete animation when animating between "rect(10px, 10px, 10px, 10px)" and "rect(10px, 10px, 10px, auto)" with keyframe easing]
-    expected:
-      if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-
   [content uses discrete animation when animating between ""a"" and ""b"" with linear easing]
     expected:
       if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
 
   [content uses discrete animation when animating between ""a"" and ""b"" with effect easing]
@@ -145,23 +138,16 @@ prefs: [layout.css.contain.enabled:true,
 
   [cursor uses discrete animation when animating between "pointer" and "wait" with keyframe easing]
     expected:
       if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
 
-  [flex-basis uses discrete animation when animating between "auto" and "10px" with keyframe easing]
-    expected:
-      if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-      if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
-
   [font-variant-alternates uses discrete animation when animating between "swash(unknown)" and "stylistic(unknown)" with linear easing]
     expected:
       if not debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if not debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
       if debug and stylo and not e10s and (os == "linux") and (version == "Ubuntu 16.04") and (processor == "x86_64") and (bits == 64): FAIL
 
   [font-variant-alternates uses discrete animation when animating between "swash(unknown)" and "stylistic(unknown)" with effect easing]