Remove libgcc_s.so.1(GCC_3.0)(64bit) from expected_deps_x86

As suggested by log output, see bug 311459.

R=mmoss@chromium.org, mmoss@google.com

Review URL: https://codereview.chromium.org/42793006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230961 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230961