Remove redundant explicit MLIR mappings

These are the same as the generic mapping function would produce.

Closes https://github.com/google/iree/pull/2225

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/2225 from GMNGeoffrey:bazel-to-cmake 4417b48a626044c72cd4b81e367fafdae5f79b1a
PiperOrigin-RevId: 316689185
diff --git a/build_tools/bazel_to_cmake/bazel_to_cmake_targets.py b/build_tools/bazel_to_cmake/bazel_to_cmake_targets.py
index d89e2e5..ec6496d 100644
--- a/build_tools/bazel_to_cmake/bazel_to_cmake_targets.py
+++ b/build_tools/bazel_to_cmake/bazel_to_cmake_targets.py
@@ -40,7 +40,6 @@
     "@llvm-project//mlir:LLVMTransforms": ["MLIRStandardToLLVM"],
     "@llvm-project//mlir:SCFToGPUPass": ["MLIRSCFToGPU"],
     "@llvm-project//mlir:SCFDialect": ["MLIRSCF"],
-    "@llvm-project//mlir:SCFTransforms": ["MLIRSCFTransforms"],
     "@llvm-project//mlir:SideEffects": ["MLIRSideEffectInterfaces"],
     "@llvm-project//mlir:SPIRVDialect": ["MLIRSPIRV"],
     "@llvm-project//mlir:SPIRVLowering": ["MLIRSPIRV", "MLIRSPIRVTransforms"],
@@ -50,7 +49,6 @@
     "@llvm-project//mlir:StandardToSPIRVConversions": [
         "MLIRStandardToSPIRVTransforms"
     ],
-    "@llvm-project//mlir:TableGen": ["MLIRTableGen"],
     "@llvm-project//mlir:mlir_c_runner_utils": ["MLIRExecutionEngine"],
     "@llvm-project//mlir:mlir-translate": ["mlir-translate"],
     "@llvm-project//mlir:MlirTableGenMain": ["MLIRTableGen"],