Refactor: remove key parameter from testvar methods #8306

Job	Run time
Pre-build for cache	2m 20s
Set up single test	15s
Misc checks	5m 35s
Integration test	1m 59s
Functional test xdc (cass_es)	16m 55s
Unit test	7m 11s
Functional test (ubuntu-20.04, 0, cass_es)	14m 19s
Functional test xdc (cass_es8)	17m 40s
Functional test (ubuntu-20.04, 0, cass_es8)	13m 58s
Functional test xdc (mysql8)	17m 21s
Functional test (ubuntu-20.04, 0, sqlite)	12m 44s
Functional test xdc (postgres12)	16m 18s
Functional test (ubuntu-20.04, 0, mysql8)	12m 7s
Functional test xdc (postgres12_pgx)	19m 23s
Functional test ndc (cass_es)	3m 52s
Functional test (ubuntu-20.04, 0, postgres12)	12m 27s
Functional test ndc (cass_es8)	3m 59s
Functional test (ubuntu-20.04, 0, postgres12_pgx)	11m 57s
Functional test ndc (mysql8)	3m 16s
Functional test (ubuntu-20.04, 1, cass_es)	16m 12s
Functional test ndc (postgres12)	3m 20s
Functional test (ubuntu-20.04, 1, cass_es8)	14m 53s
Functional test ndc (postgres12_pgx)	3m 17s
Functional test (ubuntu-20.04, 1, sqlite)	14m 10s
Functional test (ubuntu-20.04, 1, mysql8)	14m 5s
Functional test (ubuntu-20.04, 1, postgres12)	12m 46s
Functional test (ubuntu-20.04, 1, postgres12_pgx)	12m 8s
Functional test (ubuntu-20.04, 2, cass_es)	13m 5s
Functional test (ubuntu-20.04, 2, cass_es8)	14m 1s
Functional test (ubuntu-20.04, 2, sqlite)	11m 25s
Functional test (ubuntu-20.04, 2, mysql8)	12m 30s
Functional test (ubuntu-20.04, 2, postgres12)	12m 3s
Functional test (ubuntu-20.04, 2, postgres12_pgx)	11m 56s
Test Status	1s
	5h 59m 28s

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