Remove x86 specific code from noplt.c

[tmsriram]

Summary

https://reviews.llvm.org/D39079 breaks noplt.c for non-x86 targets. Remove x86 specific code from noplt.c

[tmsriram]

More information here. This breaks non-x86 builds like PPC because:

/home/buildbots/ppc64be-clang-test/clang-ppc64be/llvm/tools/clang/test/CodeGen/noplt.c:4:22: error: expected string not found in input
// CHECK-NOPLT-NEXT: declare i32 @foo

<stdin>:14:1: note: scanning from here
declare signext i32 @foo(...) #1

removing i32 from the test solves this problem.

[rnk]

Please search for declare {{.*}}i32 @foo, and then commit. Otherwise this could match call i32 @foo or something like that.

test/CodeGen/noplt.c

 // RUN: %clang_cc1 -emit-llvm -fno-plt %s -o - | FileCheck %s -check-prefix=CHECK-NOPLT
 
 // CHECK-NOPLT: Function Attrs: nonlazybind
-// CHECK-NOPLT-NEXT: declare i32 @foo
+// CHECK-NOPLT-NEXT: @foo
 int foo();
 
 int bar() {
   return foo();
 }