[intrinsics] Drop the now obsolete %_DoubleHi and %_DoubleLo intrinsics.

src/runtime/runtime.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_RUNTIME_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/base/platform/time.h"
 #include "src/objects.h"
@@ skipping 330 matching lines @@
   F(LiveEditReplaceScript, 3, 1)                    \
   F(LiveEditFunctionSourceUpdated, 1, 1)            \
   F(LiveEditReplaceFunctionCode, 2, 1)              \
   F(LiveEditFunctionSetScript, 2, 1)                \
   F(LiveEditReplaceRefToNestedFunction, 3, 1)       \
   F(LiveEditPatchFunctionPositions, 2, 1)           \
   F(LiveEditCheckAndDropActivations, 3, 1)          \
   F(LiveEditCompareStrings, 2, 1)                   \
   F(LiveEditRestartFrame, 2, 1)
 
-
-#define FOR_EACH_INTRINSIC_MATHS(F) \
-  F(DoubleHi, 1, 1)                 \
-  F(DoubleLo, 1, 1)                 \
-  F(GenerateRandomNumbers, 1, 1)
-
+#define FOR_EACH_INTRINSIC_MATHS(F) F(GenerateRandomNumbers, 1, 1)
 
 #define FOR_EACH_INTRINSIC_NUMBERS(F)  \
   F(NumberToRadixString, 2, 1)         \
   F(NumberToFixed, 2, 1)               \
   F(NumberToExponential, 2, 1)         \
   F(NumberToPrecision, 2, 1)           \
   F(IsValidSmi, 1, 1)                  \
   F(StringToNumber, 1, 1)              \
   F(StringParseInt, 2, 1)              \
   F(StringParseFloat, 1, 1)            \
@@ skipping 773 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 3);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_