Remove arm_apcscc from the test files. It is the default and doing this
matches what llvm-gcc and clang now produce.

llvm-svn: 106221
diff --git a/llvm/test/CodeGen/Thumb/trap.ll b/llvm/test/CodeGen/Thumb/trap.ll
index 76a0589..04cd3ee 100644
--- a/llvm/test/CodeGen/Thumb/trap.ll
+++ b/llvm/test/CodeGen/Thumb/trap.ll
@@ -1,7 +1,7 @@
 ; RUN: llc < %s -march=thumb | FileCheck %s
 ; rdar://7961298
 
-define arm_apcscc void @t() nounwind {
+define void @t() nounwind {
 entry:
 ; CHECK: t:
 ; CHECK: trap