MIPS: Remove move ascii data hint for one byte strings

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index e0c5787d3b990c86f354033b0daeec41a06c2cc5..64f3631cebf356f3aa7a69fdcc5efaa4c2ecfd93 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -4944,10 +4944,8 @@ void MacroAssembler::JumpIfBothInstanceTypesAreNotSequentialAscii(
     Register scratch2,
     Label* failure) {
   int kFlatAsciiStringMask =
-      kIsNotStringMask | kStringEncodingMask | kAsciiDataHintMask |
-      kStringRepresentationMask;
+      kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask;
   int kFlatAsciiStringTag = ASCII_STRING_TYPE;
-  ASSERT_EQ(ASCII_STRING_TYPE, ASCII_STRING_TYPE & kFlatAsciiStringMask);
   ASSERT(kFlatAsciiStringTag <= 0xffff);  // Ensure this fits 16-bit immed.
   andi(scratch1, first, kFlatAsciiStringMask);
   Branch(failure, ne, scratch1, Operand(kFlatAsciiStringTag));
@@ -4960,10 +4958,8 @@ void MacroAssembler::JumpIfInstanceTypeIsNotSequentialAscii(Register type,
                                                             Register scratch,
                                                             Label* failure) {
   int kFlatAsciiStringMask =
-      kIsNotStringMask | kStringEncodingMask | kAsciiDataHintMask |
-      kStringRepresentationMask;
+      kIsNotStringMask | kStringEncodingMask | kStringRepresentationMask;
   int kFlatAsciiStringTag = ASCII_STRING_TYPE;
-  ASSERT_EQ(ASCII_STRING_TYPE, ASCII_STRING_TYPE & kFlatAsciiStringMask);
   And(scratch, type, Operand(kFlatAsciiStringMask));
   Branch(failure, ne, scratch, Operand(kFlatAsciiStringTag));
 }