Web Inspector: Remove flaky part of testRendererProcessNativeMemorySize test.
https://bugs.webkit.org/show_bug.cgi?id=112703

Patch by Alexei Filippov <alph@chromium.org> on 2013-03-19
Reviewed by Yury Semikhatsky.

The memory increase size check happened to be flaky. Remove it.

* src/js/Tests.js:
(.TestSuite.prototype.testRendererProcessNativeMemorySize.step1):
(.TestSuite.prototype.testRendererProcessNativeMemorySize):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146212 268f45cc-cd09-0410-ab3c-d52691b4dbfc