[ctxprof][nfc] Remove redundant include in PGOCtxProfWriter.cpp (llvm#135077)

Author: mtrofin

llvm/lib/ProfileData/PGOCtxProfWriter.cpp

@@ -13,7 +13,6 @@
 #include "llvm/ProfileData/PGOCtxProfWriter.h"
 #include "llvm/Bitstream/BitCodeEnums.h"
 #include "llvm/ProfileData/CtxInstrContextNode.h"
-#include "llvm/ProfileData/PGOCtxProfReader.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/YAMLTraits.h"