[llvm-mca] Remove unused include header files. NFC

Also, run clang-format on RetireControlUnit.cpp.

llvm-svn: 332337
diff --git a/llvm/tools/llvm-mca/RetireControlUnit.cpp b/llvm/tools/llvm-mca/RetireControlUnit.cpp
index 4469da3..d28c69b 100644
--- a/llvm/tools/llvm-mca/RetireControlUnit.cpp
+++ b/llvm/tools/llvm-mca/RetireControlUnit.cpp
@@ -12,10 +12,8 @@
 ///
 //===----------------------------------------------------------------------===//
 
-
-#include "RetireControlUnit.h"
 #include "Dispatch.h"
-#include "llvm/MC/MCSchedule.h"
+#include "RetireControlUnit.h"
 #include "llvm/Support/Debug.h"
 
 using namespace llvm;
@@ -43,7 +41,8 @@
 }
 
 // Reserves a number of slots, and returns a new token.
-unsigned RetireControlUnit::reserveSlot(const InstRef &IR, unsigned NumMicroOps) {
+unsigned RetireControlUnit::reserveSlot(const InstRef &IR,
+                                        unsigned NumMicroOps) {
   assert(isAvailable(NumMicroOps));
   unsigned NormalizedQuantity =
       std::min(NumMicroOps, static_cast<unsigned>(Queue.size()));