chore: rm template from issue_tracker in config and repometadata #1226

Job	Run time
filter	1m 9s
build(25) except self-service clients	10m 41s
build(21) except self-service clients	9m 37s
build(8) for gapic-generator-java	4m 57s
build(8) except for gapic-generator-java	3m 29s
build (17)	7m 19s
build(8) for showcase	9m 47s
build (11)	7m 2s
dependency_analyzer_unit_test	1m 16s
showcase-clirr	5m 21s
unmanaged_dependency_check	10m 7s
showcase (25)	6m 10s
showcase (11)	5m 31s
showcase (21)	5m 31s
gapic-generator-java-bom	2m 36s
showcase (17)	5m 14s
	1h 35m 47s

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