[PATCH v2 0/1] MR5960: ntdll: Remove superflous null check (coverity)

[Fabian Maurer (＠DarkShadow44)]

It's dereferenced later in create_window_handle anyways

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  v2: win32u: Remove superflous null check (coverity).
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5960