Revert "Add tests"

This reverts commit d6703ebbeb5ddc358929672b44994a9d05683523.

Author: Jerry Wu

mlir/unittests/Interfaces/CMakeLists.txt

@@ -3,7 +3,6 @@ add_mlir_unittest(MLIRInterfacesTests
   DataLayoutInterfacesTest.cpp
   InferIntRangeInterfaceTest.cpp
   InferTypeOpInterfaceTest.cpp
-  LoopLikeInterfaceTest.cpp
 )
 
 target_link_libraries(MLIRInterfacesTests
@@ -13,9 +12,7 @@ target_link_libraries(MLIRInterfacesTests
   MLIRDataLayoutInterfaces
   MLIRDLTIDialect
   MLIRFuncDialect
-  MLIRIR
   MLIRInferIntRangeInterface
   MLIRInferTypeOpInterface
-  MLIRLoopLikeInterface
   MLIRParser
 )