Removed drenv setup #4213

Job	Run time
Build image	2m 24s
Golangci Lint (.)	1m 33s
drenv tests (3.10)	1m 28s
Golangci Lint (api)	33s
drenv tests (3.11)	1m 32s
Linters	54s
ramenctl tests (3.10)	17s
drenv tests (3.12)	1m 41s
ramenctl tests (3.11)	18s
Golangci Lint (e2e)	56s
drenv tests (3.13)	1m 33s
drenv tests (3.14-dev)	1m 39s
ramenctl tests (3.12)	23s
Unit tests	3m 32s
ramenctl tests (3.13)	23s
ramenctl tests (3.14-dev)	37s
Check artifacts and operator deployment (1.29.1)	1m 20s
Publish built image	0s
	21m 3s

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