[CodeGenObjC] Remove unused check prefixes

Author: RKSimon

clang/test/CodeGenObjC/arc-captured-block-var-inlined-layout.m

@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple x86_64-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-64.layout
-// RUN: FileCheck -check-prefix=CHECK -check-prefix=CHECK-64 --input-file=%t-64.layout %s
+// RUN: FileCheck --input-file=%t-64.layout %s
 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null  %s > %t-32.layout
-// RUN: FileCheck -check-prefix=CHECK -check-prefix=CHECK-32 --input-file=%t-32.layout %s
+// RUN: FileCheck --input-file=%t-32.layout %s
 // rdar://12184410
 
 void x(id y) {}

clang/test/CodeGenObjC/mrr-captured-block-var-inlined-layout.m

@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -fblocks -fobjc-runtime-has-weak -fobjc-arc -triple x86_64-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-64.layout
-// RUN: FileCheck -check-prefix=CHECK -check-prefix=CHECK-64 --input-file=%t-64.layout %s
+// RUN: FileCheck --input-file=%t-64.layout %s
 // RUN: %clang_cc1 -fblocks -fobjc-runtime-has-weak -fobjc-arc -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-32.layout
-// RUN: FileCheck -check-prefix=CHECK -check-prefix=CHECK-32 --input-file=%t-32.layout %s
+// RUN: FileCheck --input-file=%t-32.layout %s
 // rdar://12184410
 // rdar://12184410