Remove conv2d conversion to tosa.fully_connected (#536)

This is a part of the following upstream changes:

llvm#126152

[mlir][tosa] Remove FullyConnectedOp from TOSA Dialect

Upstream commit is 4ec1990

Author: josel-amd

mlir/include/mlir/Dialect/Tosa/Transforms/Passes.h

@@ -26,7 +26,6 @@ namespace tosa {
 
 // Expose Rewrite Functions that decompose TOSA Ops into further TOSA Ops.
 // The rewrites can be selectively added to a conversion pass.
-void populateTosaDecomposeConv2D(MLIRContext *ctx, RewritePatternSet &patterns);
 void populateTosaDecomposeTransposeConv(MLIRContext *ctx,
                                         RewritePatternSet &patterns);
 void populateTosaDecomposeDepthwise(MLIRContext *ctx,

mlir/lib/Dialect/Tosa/Transforms/CMakeLists.txt

@@ -1,6 +1,5 @@
 add_mlir_dialect_library(MLIRTosaTransforms
   TosaDecomposeTransposeConv.cpp
-  TosaDecomposeConv2D.cpp
   TosaDecomposeDepthwise.cpp
   TosaFolders.cpp
   TosaInferShapes.cpp

mlir/lib/Dialect/Tosa/Transforms/TosaDecomposeConv2D.cpp

@@ -38,7 +38,6 @@ struct TosaOptionalDecompositions
     RewritePatternSet patterns(ctx);
     auto func = getOperation();
 
-    mlir::tosa::populateTosaDecomposeConv2D(ctx, patterns);
     mlir::tosa::populateTosaDecomposeTransposeConv(ctx, patterns);
     mlir::tosa::populateTosaDecomposeDepthwise(ctx, patterns);