Re-enable filter_list_converter target in coverage build

This was disabled in crrev.com/c/1688731 due to failures in linking of
filter_list_converter target. This has now been fixed.

BUG=981112

Change-Id: I3e4f5947d345c2c96dac6c3c2fe531309e7b827d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2561442
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Karan Bhatia <karandeepb@chromium.org>
Auto-Submit: Karan Bhatia <karandeepb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#831136}

BUILD.gn

@@ -261,14 +261,9 @@ group("gn_all") {
     deps += [
       "//extensions:extensions_browsertests",
       "//extensions:extensions_unittests",
+      "//extensions/browser/api/declarative_net_request/filter_list_converter",
       "//extensions/shell:app_shell_unittests",
     ]
-
-    # TODO(crbug.com/981112): This target is failing to compile consistently in
-    # coverage build, remove this condition when the bug is fixed.
-    if (!use_clang_coverage) {
-      deps += [ "//extensions/browser/api/declarative_net_request/filter_list_converter" ]
-    }
   }
 
   if (enable_remoting) {