MIPS32: Allow some patched instructions in delay slots

Test: test-art-host-gtest
Test: booted MIPS64 (with 2nd arch MIPS32R6) in QEMU
Test: test-art-target-gtest32
Test: testrunner.py --target --optimizing --32
Test: same tests as above on CI20
Test: booted MIPS32R2 in QEMU

Change-Id: I7e1ba59993008014d0115ae20c56e0a71fef0fb0
diff --git a/compiler/optimizing/code_generator_mips.h b/compiler/optimizing/code_generator_mips.h
index 7195b9d..c0e1ec0 100644
--- a/compiler/optimizing/code_generator_mips.h
+++ b/compiler/optimizing/code_generator_mips.h
@@ -637,8 +637,7 @@
 
   void EmitPcRelativeAddressPlaceholderHigh(PcRelativePatchInfo* info_high,
                                             Register out,
-                                            Register base,
-                                            PcRelativePatchInfo* info_low = nullptr);
+                                            Register base);
 
   // The JitPatchInfo is used for JIT string and class loads.
   struct JitPatchInfo {