[X86] Don't pass getRegisterName from the InstPrinters into EmitAnyX86InstComments. Just always use the function from the ATTPrinter. NFC

The IntelPrinter and the ATTPrinter produce the same strings for the same input. We already use the ATTPrinter explicitly in several other places.

llvm-svn: 328762
diff --git a/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp b/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
index 0e0a02b..0e06975 100644
--- a/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
+++ b/llvm/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
@@ -59,7 +59,7 @@
 
   // If verbose assembly is enabled, we can print some informative comments.
   if (CommentStream)
-    EmitAnyX86InstComments(MI, *CommentStream, MII, getRegisterName);
+    EmitAnyX86InstComments(MI, *CommentStream, MII);
 }
 
 void X86IntelInstPrinter::printSSEAVXCC(const MCInst *MI, unsigned Op,