Removes obsolete MIPS ifdef from FindCodeObject test.

runtime/vm/find_code_object_test.cc

Index: runtime/vm/find_code_object_test.cc
===================================================================
--- runtime/vm/find_code_object_test.cc	(revision 30584)
+++ runtime/vm/find_code_object_test.cc	(working copy)
@@ -142,19 +142,11 @@
   code = function.CurrentCode();
   EXPECT(code.Size() > 16);
   pc = code.EntryPoint() + 16;
-#if defined(TARGET_ARCH_MIPS)
-  // MIPS can only Branch +/- 128KB
-  EXPECT(code.Size() > ((PageSpace::kPageSizeInWords << kWordSizeLog2) / 2));
-  EXPECT(Code::LookupCode(pc) == code.raw());
-  pc = code.EntryPoint() + ((PageSpace::kPageSizeInWords << kWordSizeLog2) / 4);
-  EXPECT(Code::LookupCode(pc) == code.raw());
-#else
   EXPECT(code.Size() > (PageSpace::kPageSizeInWords << kWordSizeLog2));
   EXPECT(Code::LookupCode(pc) == code.raw());
   EXPECT(code.Size() > (1 * MB));
   pc = code.EntryPoint() + (1 * MB);
   EXPECT(Code::LookupCode(pc) == code.raw());
-#endif  // defined(TARGET_ARCH_MIPS)
 }
 
 }  // namespace dart