fix build and while at it remove a redudant include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91774 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/X86DisassemblerShared.h

@@ -11,6 +11,7 @@
 #define X86DISASSEMBLERSHARED_H
 
 #include <string>
+#include <string.h>
 
 #define INSTRUCTION_SPECIFIER_FIELDS       \
   bool                    filtered;        \

utils/TableGen/X86DisassemblerTables.cpp

@@ -21,8 +21,6 @@
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 
-#include <string>
-
 using namespace llvm;
 using namespace X86Disassembler;