deleted file mode 100644
--- a/testing/web-platform/meta/infrastructure/assumptions/ahem.html.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[ahem.html]
-  expected:
-    if not debug and not stylo and e10s and (os == "mac") and (version == "OS X 10.10.5") and (processor == "x86_64") and (bits == 64): FAIL
-    if debug and stylo and e10s and (os == "mac") and (version == "OS X 10.10.5") and (processor == "x86_64") and (bits == 64): FAIL
-    if not debug and stylo and e10s and (os == "mac") and (version == "OS X 10.10.5") and (processor == "x86_64") and (bits == 64): FAIL
-    if debug and not stylo and e10s and (os == "mac") and (version == "OS X 10.10.5") and (processor == "x86_64") and (bits == 64): FAIL

--- a/testing/web-platform/tests/infrastructure/assumptions/ahem.html
+++ b/testing/web-platform/tests/infrastructure/assumptions/ahem.html
@@ -5,16 +5,20 @@
 * {
   padding: 0;
   margin: 0;
   border: none;
 }
 td {
   width: 34px;
 }
+@font-face {
+  font-family: Ahem;
+  src: url("../../fonts/Ahem.ttf");
+}
 table {
   font: 15px/1 Ahem;
   border-collapse: separate;
   border-spacing: 1px;
   table-layout: fixed;
 }
 </style>
 <table>