Instrumented libraries: do not instrument zlib1g.

It somehow causes unresolved symbol errors when building other packages.
Let's see if we can skip instrumenting it without breaking MSan builds.

BUG=313751
R=glider@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/308683010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274265 0039d316-1c4b-4281-b951-d872f2087c98

third_party/instrumented_libraries/instrumented_libraries.gyp

@@ -73,7 +73,8 @@
         '<(_sanitizer_type)-libxrender1',
         '<(_sanitizer_type)-libxss1',
         '<(_sanitizer_type)-libxtst6',
-        '<(_sanitizer_type)-zlib1g',
+        # https://crbug.com/313751#c110
+        #'<(_sanitizer_type)-zlib1g',
         '<(_sanitizer_type)-libglib2.0-0',
         '<(_sanitizer_type)-libdbus-1-3',
         '<(_sanitizer_type)-libdbus-glib-1-2',