Remove the Copied parameter from MemoryObject::readBytes.

There was exactly one caller using this API right, the others were relying on
specific behavior of the default implementation. Since it's too hard to use it
right just remove it and standardize on the default behavior.

Defines away PR16132.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182636 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/MBlaze/Disassembler/MBlazeDisassembler.cpp

@@ -501,14 +501,13 @@ MCDisassembler::DecodeStatus MBlazeDisassembler::getInstruction(MCInst &instr,
                                         raw_ostream &cStream) const {
   // The machine instruction.
   uint32_t insn;
-  uint64_t read;
   uint8_t bytes[4];
 
   // By default we consume 1 byte on failure
   size = 1;
 
   // We want to read exactly 4 bytes of data.
-  if (region.readBytes(address, 4, (uint8_t*)bytes, &read) == -1 || read < 4)
+  if (region.readBytes(address, 4, bytes) == -1)
     return Fail;
 
   // Encoded as a big-endian 32-bit word in the stream.