style: remove implicit Sized bound based on feedback #145

Job	Run time
Clippy	2m 7s
Test on GPUs	10m 43s
Build with various GPU support enabled	9m 54s
Test on GPUs (--ignored)	17m 3s
Checking fmt	4s
Test ignored in release mode	2m 42s
Test in release mode on MacOS	18s
Test without default features	9m 1s
Test in release mode	19m 8s
Test in release mode (--features fixed-rows-to-discard)	19m 7s
	1h 30m 7s

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