[release-v2.6] docs: Remove duplicated examples #9594

Job	Run time
Benchmark	9m 26s
Build	1m 47s
Run integration tests (test-e2e)	20m 12s
Run integration tests (test-integration-poller)	9m 22s
Run integration tests (test-e2e-deployments)	13m 2s
Lint	3m 6s
Run integration tests (test-e2e-serverless)	7m 12s
Run Unit Tests (test-with-cover-pkg)	3m 9s
Vendor check	1m 32s
Run Unit Tests (test-with-cover-tempodb)	16m 10s
Run Unit Tests (test-with-cover-tempodb-wal)	10m 30s
Build technical documentation	23s
Run Unit Tests (test-with-cover-others)	12m 3s
Check jsonnet & tempo-mixin	42s
	1h 48m 36s

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