COMP: Remove redundant Error/Warning Ctest custom match expression.

As of kitware/CMake@b2634b6aaor for any version of CMake >= v2.8.3, these
expressions are already included in the default CTest list
implemented in cmCTestBuildHandler.cxx

See [1], [2] and [3]

Co-authored-by: Christopher Mullins <christopher.mullins@kitware.com>
Co-authored-by: Matt McCormick <matt.mccormick@kitware.com>

[1] http://cmake.org/gitweb?p=cmake.git;a=commit;h=b2634b6aa3a0203e3a97060cf9e3206245a85080
[2] http://cmake.org/gitweb?p=cmake.git;a=blob;f=Source/CTest/cmCTestBuildHandler.cxx;h=c5deb964a38fe7ed37c08562112800b961788269;hb=HEAD#l70
[3] http://cmake.org/gitweb?p=cmake.git;a=blob;f=Source/CTest/cmCTestBuildHandler.cxx;h=c5deb964a38fe7ed37c08562112800b961788269;hb=HEAD#l136

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22894 3bd1e089-480b-0410-8dfb-8563597acbee