remove typedef.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43109 91177308-0d34-0410-b5e6-96231b3b80d8

test/Parser/selector-1.m

@@ -1,7 +1,5 @@
 // RUN: clang -parse-noop %s 
 
-typedef struct objc_selector *SEL;
-
 int main() {
  SEL s = @selector(retain);
  SEL s1 = @selector(meth1:);