Remove emacs mode markers from .cpp files. NFC

.cpp files are unambiguously C++, you only need the mode markers on .h files.

llvm-svn: 267353
diff --git a/llvm/lib/Analysis/ScalarEvolutionNormalization.cpp b/llvm/lib/Analysis/ScalarEvolutionNormalization.cpp
index b7fd5d5..c1f9503 100644
--- a/llvm/lib/Analysis/ScalarEvolutionNormalization.cpp
+++ b/llvm/lib/Analysis/ScalarEvolutionNormalization.cpp
@@ -1,4 +1,4 @@
-//===- ScalarEvolutionNormalization.cpp - See below -------------*- C++ -*-===//
+//===- ScalarEvolutionNormalization.cpp - See below -----------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //