Removing an accidentally duplicated line of test code to fix bots.

Author: AaronBallman

clang/test/Sema/attr-capabilities.c

@@ -1,6 +1,5 @@
 // RUN: %clang_cc1 -fsyntax-only -Wthread-safety -verify %s
 
-typedef int __attribute__((capability("role"))) ThreadRole;
 typedef int __attribute__((capability("role"))) ThreadRole;
 struct __attribute__((shared_capability("mutex"))) Mutex {};
 struct NotACapability {};