API Remove GraphQL #873

Job	Run time
CI / Generate matrix	21s
CI / Context	1s
CI / 8.1 prf-low mysql57 phpunit all	2m 4s
CI / Check governance	0s
CI / 8.2 mariadb phpunit all	2m 20s
CI / 8.3 mysql80 phpunit all	2m 33s
CI / 8.1 mysql57 phplinting	1m 36s
CI / 8.1 mysql57 endtoend root job1	13m 40s
CI / 8.3 mysql80 endtoend root job1	14m 44s
CI / 8.1 mysql57 endtoend root job2	21m 58s
CI / 8.3 mysql80 endtoend root job2	21m 22s
CI / 8.1 mysql57 endtoend root job3	7m 4s
CI / 8.3 mysql80 endtoend root job3	7m 2s
CI / 8.1 mysql57 js	4m 39s
CI / Dispatch tag patch release	0s
	1h 39m 24s

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