--- a/devtools/client/locales/en-US/appcacheutils.properties
+++ b/devtools/client/locales/en-US/appcacheutils.properties
@@ -112,12 +112,8 @@ fallbackAsterisk2=Asterisk (*) incorrect
 # SETTINGS section containing something other than the valid "prefer-online"
 # or "fast". Parameters: %S is the line number where this error occurs.
 settingsBadValue=The SETTINGS section may only contain a single value, “prefer-online” or “fast” at line %S.
 
 # LOCALIZATION NOTE (invalidSectionName): the associated cache manifest
 # contains an invalid section name. Parameters: %1$S is the section name, %2$S
 # is the line number.
 invalidSectionName=Invalid section name (%1$S) at line %2$S.
-
-# LOCALIZATION NOTE (entryNotFound): the requested cache entry that does not
-# exist.
-entryNotFound=Entry not found.