Duplicate: module-types/Cisco/NXA-PAC-1100W exists as both .yml and .yaml

`module-types/Cisco/NXA-PAC-1100W.yml` and `module-types/Cisco/NXA-PAC-1100W.yaml` both exist with different `model` values. The `.yaml` variant is more complete (includes `description`). One should be removed.

Same pattern as #4073.