Remove protoc version check because they changed versioning #2057

Job	Run time
linux nightly (all features)	6m 33s
linux stable (with-bytes)	6m 1s
linux beta (default features)	7m 34s
windows stable (default features)	2m 36s
linux stable (default features)	7m 23s
Check sync-readme	39s
mega-linter	2m 13s
Miri test	42s
rustfmt check	5m 22s
CI self-check	8s
	39m 11s

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