clang-format: Remove assert that isn't helpful.

This assert would trigger on:
  #d , = }

llvm-svn: 226446
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 8e770c2..e1484b7 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -2596,6 +2596,7 @@
   verifyFormat("#pragma omp threadprivate( \\\n"
                "    y)), // expected-warning",
                getLLVMStyleWithColumns(28));
+  verifyFormat("#d, = };");
 }
 
 TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) {