Typegen adding invalid import

[TarikGul]

rel: #5972

Currently the typegen for 1.3.0 for Kusama is adding StagingXcmV4Xcm to the imports of query.ts when there is no use of the Import. This is causing typescript build issues. I am not able to find the source of the issue as the code is quite complicated. Due to this being a relatively harmless issue, I am adding a build rule to ignore it!

That being said this issue should be fixed, and the bug can be replicated by removing the "noUnusedLocals": false rules in the tsconfig compiler options for the builds.