Proper BUILD.bazel fix due to c07e1e3 (#130962)

Author: bartchr808

llvm/include/llvm/ADT/GenericUniformityImpl.h

@@ -51,13 +51,15 @@
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SparseBitVector.h"
 #include "llvm/ADT/StringExtras.h"
-#include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/Support/raw_ostream.h"
 
 #define DEBUG_TYPE "uniformity"
 
 namespace llvm {
 
+// Forward decl from llvm/CodeGen/MachineInstr.h
+class MachineInstr;
+
 /// Construct a specially modified post-order traversal of cycles.
 ///
 /// The ModifiedPO is contructed using a virtually modified CFG as follows:

utils/bazel/llvm-project-overlay/llvm/BUILD.bazel

@@ -1208,7 +1208,6 @@ cc_library(
     ]),
     deps = [
         ":BinaryFormat",
-        ":CodeGen",
         ":Core",
         ":Object",
         ":ProfileData",