Revert "[MLIR] Introduce constraint attributes for DenseArrayAttr"

This reverts commit dd0de4dc.

Build on mlir-windows fails:

Step 6 (build-check-mlir-build-only) failure: build (failure)
C:\buildbot\mlir-x64-windows-ninja\build\tools\mlir\test\lib\Dialect\Test\TestOps.cpp.inc(928): error C2220: the following warning is treated as an error
C:\buildbot\mlir-x64-windows-ninja\build\tools\mlir\test\lib\Dialect\Test\TestOps.cpp.inc(928): warning C4804: '>': unsafe use of type 'bool' in operation
C:\buildbot\mlir-x64-windows-ninja\build\tools\mlir\test\lib\Dialect\Test\TestOps.cpp.inc(7419): warning C4804: '>': unsafe use of type 'bool' in operation