[iq136boy]

Motivation

Remove the OpenCL solver ConvOclDirectFwdGen and its kernel MIOpenConvDirGenFwd.cl as part of the ongoing effort to eliminate OpenCL solvers/kernels from MIOpen. No HIP replacement solver is required here. The problem space covered by ConvOclDirectFwdGen (non-1x1 kernels with stride > 1, and kernels larger than 11x11) is already fully
covered by existing HIP-based solvers:

• ConvHipImplicitGemmForwardV4R4Xdlops and ConvHipImplicitGemmForwardV4R5Xdlops
  handle the common strided convolution cases (e.g., 3x3/stride=2) with better
  performance via XDLOPs acceleration.
• ConvDirectNaiveConvFwd provides a HIP fallback for any remaining edge cases
  (e.g., small or oddly-shaped channel counts) with no shape restrictions.

Technical Details

• Removed the OpenCL solver conv_ocl_dir2Dfwdgen.cpp and its kernel
  MIOpenConvDirGenFwd.cl (588 lines).
• Removed ConvOclDirectFwdGen struct declaration from solvers.hpp.
• Replaced the RegisterWithSolver call for ConvOclDirectFwdGen in solver.cpp
  with a ++id tombstone comment to preserve solver ID numbering for database
  compatibility.
• Removed ConvOclDirectFwdGen from GetDirectSolvers() in mlo_dir_conv.cpp.
• Updated all find-db files (HIP and OpenCL) to remove entries referencing ConvOclDirectFwdGen.
  Lines where ConvOclDirectFwdGen was the sole solver for a problem config
  were dropped entirely; lines with multiple solvers had only the
  ConvOclDirectFwdGen segment removed.
• Removed the unit test file unit_conv_solver_ConvOclDirectFwdGen.cpp.
• Removed ConvOclDirectFwdGen entry from unit_FinInterface.cpp.

Test Plan

• Verify the build compiles without errors after the removal.
• Run existing HIP solver unit tests to confirm coverage of the problem space previously handled by ConvOclDirectFwdGen:
  • GPU_UnitTestConvSolverHipImplicitGemmV4R1Fwd (FP16, BFP16, FP32)
  • GPU_UnitTestConvSolverHipImplicitGemmForwardV4R4Xdlops (FP16, BFP16, FP32)
  • GPU_UnitTestConvSolverHipImplicitGemmForwardV4R5Xdlops (FP16, BFP16, FP32)
• Confirm no remaining references to ConvOclDirectFwdGen or MIOpenConvDirGenFwd.cl in src/ and test/.

Test Result

• Local tests passed
• pending CI

Submission Checklist

• Removed OpenCL solver conv_ocl_dir2Dfwdgen.cpp
• Removed OpenCL kernel MIOpenConvDirGenFwd.cl
• Removed solver declaration from solvers.hpp
• Preserved solver ID slot in solver.cpp with tombstone comment
• Removed solver from GetDirectSolvers() in mlo_dir_conv.cpp
• Updated CMakeLists.txt to remove source and kernel file entries
• Cleaned up all find-db files (.fdb.txt.bz2) across all GPU architectures
• Removed unit test file unit_conv_solver_ConvOclDirectFwdGen.cpp
• No HIP replacement solver added (existing HIP solvers provide full coverage)