Revert "[TorchToTosa] Refactoring to separate construction of legal/i…

…llegal ops and conversion patterns. (#3759)"

This reverts commit f03a576.

include/torch-mlir/Conversion/TorchToTosa/TorchToTosa.h

@@ -12,25 +12,12 @@
 
 #include "mlir/Dialect/Func/IR/FuncOps.h"
 #include "mlir/Pass/Pass.h"
-#include "mlir/Transforms/DialectConversion.h"
-
 #include <memory>
 
 namespace mlir {
 namespace torch {
-
-/// Collect a set of legal/illegal ops for converting Torch operations to Tosa
-/// dialect.
-void populateTorchToTosaConversionLegalOps(ConversionTarget &target);
-
-/// Collect a set of patterns to convert Torch operations to Tosa dialect +
-/// return the set of illegalOps
-std::set<StringRef>
-populateTorchToTosaConversionPatternsAndIllegalOps(TypeConverter &typeConverter,
-                                                   RewritePatternSet &patterns);
-
 std::unique_ptr<OperationPass<func::FuncOp>> createConvertTorchToTosaPass();
-} // namespace torch
+}
 } // namespace mlir
 
 #endif // TORCHMLIR_CONVERSION_TORCHTOTOSA_TORCHTOTOSA_H