Remove mips test workarounds.

The mips/mips64 targets were never able to pass these tests, and the
supported architectures don't need any of these workarounds.

Test: treehugger
Change-Id: I640a8b7a98ae13d9d9cdb09b0fbef61d31d4c79a
diff --git a/tests/sys_personality_test.cpp b/tests/sys_personality_test.cpp
index 6bd00ef..2dfaa65 100644
--- a/tests/sys_personality_test.cpp
+++ b/tests/sys_personality_test.cpp
@@ -21,9 +21,7 @@
 TEST(sys_personality, current_persona) {
   int persona = personality(0xffffffff) & PER_MASK;
 #if defined(__BIONIC__)
-// When personality syscall is executed on mips64, for a 32bit process
-// sys_32_personality() is called, which converts PER_LINUX32 -> PER_LINUX
-#if defined(__LP64__) || (__mips==32 && __mips_isa_rev>2)
+#if defined(__LP64__)
   ASSERT_EQ(PER_LINUX, persona);
 #else
   ASSERT_EQ(PER_LINUX32, persona);