Remove the extra coverage file support.

PiperOrigin-RevId: 774770081

Author: thomasvl

BUILD

@@ -32,7 +32,6 @@ filegroup(
         "WORKSPACE",
         "//lib:for_bazel_tests",
         "//rules:for_bazel_tests",
-        "//tools:for_bazel_tests",
         "//xcode:for_bazel_tests",
     ],
     # Exposed publicly just so other rules can use this if they set up