Removed unused Borrow trait requirements #154

Job	Run time
docs	25s
clippy (ubuntu-latest)	1m 3s
cross (aarch64-unknown-linux-gnu)	1m 14s
clippy (macos-latest)	2m 14s
build (ubuntu-latest)	1m 28s
cross (aarch64-linux-android)	1m 31s
rustfmt (ubuntu-latest)	3s
clippy (windows-latest)	3m 6s
cross (aarch64-unknown-linux-musl)	1m 21s
build (macos-latest)	2m 23s
rustfmt (macos-latest)	5s
cross (i686-linux-android)	1m 27s
build (windows-latest)	3m 54s
test (ubuntu-latest)	2m 42s
rustfmt (windows-latest)	36s
cross (x86_64-linux-android)	1m 29s
test (macos-latest)	3m 14s
cross (i686-pc-windows-gnu)	1m 37s
test (windows-latest)	5m 50s
cross (x86_64-pc-windows-gnu)	1m 38s
cross (i686-unknown-linux-gnu)	1m 12s
cross (powerpc64-unknown-linux-gnu)	1m 12s
cross (riscv64gc-unknown-linux-gnu)	1m 9s
coverage	3m 46s
	44m 39s

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