Remove unused CodeRegion class and corresponding logging functions.

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 323 matching lines @@
 
   byte* pos_;
   byte* end_;
   RelocInfo rinfo_;
   bool done_;
   int mode_mask_;
   DISALLOW_COPY_AND_ASSIGN(RelocIterator);
 };
 
 
-// A stack-allocated code region logs a name for the code generated
-// while the region is in effect.  This information is used by the
-// profiler to categorize ticks within generated code.
-class CodeRegion BASE_EMBEDDED {
- public:
-  inline CodeRegion(Assembler* assm, const char *name) : assm_(assm) {
-    LOG(BeginCodeRegionEvent(this, assm, name));
-  }
-  inline ~CodeRegion() {
-    LOG(EndCodeRegionEvent(this, assm_));
-  }
- private:
-  Assembler* assm_;
-};
-
-
 //------------------------------------------------------------------------------
 // External function
 
 //----------------------------------------------------------------------------
 class IC_Utility;
 class Debug_Address;
 class SCTableReference;
 
 // An ExternalReference represents a C++ address called from the generated
 // code. All references to C++ functions and must be encapsulated in an
@@ skipping 80 matching lines @@
 static inline bool is_uint4(int x)  { return is_uintn(x, 4); }
 static inline bool is_uint5(int x)  { return is_uintn(x, 5); }
 static inline bool is_uint8(int x)  { return is_uintn(x, 8); }
 static inline bool is_uint12(int x)  { return is_uintn(x, 12); }
 static inline bool is_uint16(int x)  { return is_uintn(x, 16); }
 static inline bool is_uint24(int x)  { return is_uintn(x, 24); }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_