Revert "[clang-tidy] new cppcoreguidelines-slicing"

Tests fail on clang-x64-ninja-win7 due to too narrow expectation.

llvm-svn: 276413

clang-tools-extra/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp

@@ -22,7 +22,6 @@
 #include "ProTypeStaticCastDowncastCheck.h"
 #include "ProTypeUnionAccessCheck.h"
 #include "ProTypeVarargCheck.h"
-#include "SlicingCheck.h"
 
 namespace clang {
 namespace tidy {
@@ -54,8 +53,6 @@ public:
         "cppcoreguidelines-pro-type-union-access");
     CheckFactories.registerCheck<ProTypeVarargCheck>(
         "cppcoreguidelines-pro-type-vararg");
-    CheckFactories.registerCheck<SlicingCheck>(
-        "cppcoreguidelines-slicing");
     CheckFactories.registerCheck<misc::UnconventionalAssignOperatorCheck>(
         "cppcoreguidelines-c-copy-assignment-signature");
   }