Remove redundant tile size checks

[NikeNano]

Description

The block following TILE_X = max(1, 1024 // TILE_Y) seems unnecessary. Since integer division ensures (1024 // Y) * Y <= 1024 and max(1, ...) prevents TILE_X from being 0, the subsequent checks appear to be unreachable code that re-calculates the same value. Can we remove this simplification or am I missing something ?

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [x] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.