Revert "strerror: incl enum name"

Revert submission 1833622-usable-strerror

Reason for revert: b/202330586
Bug: 202330586
Reverted Changes:
I4d8f617a0:Track strerror(3) change.
I8ea86220c:strerror: incl enum name
I407bd9f4d:strerror: incl enum name

Change-Id: I81ed563221a77827084711eadd7fb739aeba52a1
diff --git a/tests/string_posix_strerror_r_test.cpp b/tests/string_posix_strerror_r_test.cpp
index 808f963..e4becaa 100644
--- a/tests/string_posix_strerror_r_test.cpp
+++ b/tests/string_posix_strerror_r_test.cpp
@@ -15,8 +15,6 @@
  */
 
 #include <errno.h>
-
-#include <android-base/test_utils.h>
 #include <gtest/gtest.h>
 
 // Defined in string_posix_strerror_r_wrapper.cpp as a wrapper around the posix
@@ -35,7 +33,7 @@
   ASSERT_STREQ("Success", buf);
 #endif
   ASSERT_EQ(0, posix_strerror_r(1, buf, sizeof(buf)));
-  ASSERT_MATCH(buf, "Operation not permitted.*");
+  ASSERT_STREQ("Operation not permitted", buf);
 
 #if defined(__BIONIC__) || defined(ANDROID_HOST_MUSL)
   // Invalid.