Matrix: remove self-include [NFC]

Author: Superty

mlir/include/mlir/Analysis/Presburger/Matrix.h

@@ -17,7 +17,6 @@
 
 #include "mlir/Support/LLVM.h"
 #include "mlir/Analysis/Presburger/Fraction.h"
-#include "mlir/Analysis/Presburger/Matrix.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -247,4 +246,4 @@ class IntMatrix : public Matrix<MPInt>
 } // namespace presburger
 } // namespace mlir
 
-#endif // MLIR_ANALYSIS_PRESBURGER_MATRIX_H
+#endif // MLIR_ANALYSIS_PRESBURGER_MATRIX_H