[clang] remove capture hack

Summary: The frontend got better and now `assert` is correctly translated.

Reviewed By: dulmarod

Differential Revision: D8731877

fbshipit-source-id: ba11b0c

infer/tests/codetoanalyze/c/errors/assertions/assertion_example.c

@@ -5,9 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-// TODO: remove this #define, it's here to get a specific version of
-// [assert], as others may confuse the clang frontend (t26324545)
-#define __STRICT_ANSI__
 #include <assert.h>
 
 // We should report here no NPE, but also we should report div0 to show that we

infer/tests/codetoanalyze/c/errors/assertions/assertion_failure.c

@@ -5,9 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-// TODO: remove this #define, it's here to get a specific version of
-// [assert], as others may confuse the clang frontend (t26324545)
-#define __STRICT_ANSI__
 #include <assert.h>
 #include <stdlib.h>