Revert of MIPS: Fix 'Assembler support for internal references.'

src/assembler.h

Index: src/assembler.h
diff --git a/src/assembler.h b/src/assembler.h
index eb00f8a7e640c619f7ddc04885201ead18a1f5ac..8907b6a4727ca47b512c7d74e32eee2d23bcde84 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -393,11 +393,6 @@
     NONE64,             // never recorded 64-bit value
     CODE_AGE_SEQUENCE,  // Not stored in RelocInfo array, used explictly by
                         // code aging.
-
-    // Encoded internal reference, used only on MIPS and MIPS64.
-    // Re-uses previous ARM-only encoding, to fit in RealRelocMode space.
-    INTERNAL_REFERENCE_ENCODED = CONST_POOL,
-
     FIRST_REAL_RELOC_MODE = CODE_TARGET,
     LAST_REAL_RELOC_MODE = VENEER_POOL,
     FIRST_PSEUDO_RELOC_MODE = CODE_AGE_SEQUENCE,
@@ -469,9 +464,6 @@
   }
   static inline bool IsInternalReference(Mode mode) {
     return mode == INTERNAL_REFERENCE;
-  }
-  static inline bool IsInternalReferenceEncoded(Mode mode) {
-    return mode == INTERNAL_REFERENCE_ENCODED;
   }
   static inline bool IsDebugBreakSlot(Mode mode) {
     return mode == DEBUG_BREAK_SLOT;