examples: Remove outdated note on 3rd-party dependencies #279

Job	Run time
apollo-federation	6s
clickhouse-multi-tenancy	1m 0s
clickhouse-multiple-sources	1m 4s
ksql	1m 54s
angular-dashboard	4s
clickhouse-dashboard	5s
compare-date-range	6s
hasura-remote-schema	7s
d3-dashboard	4s
data-blending	6s
drill-downs	7s
external-rollups	4s
hacktoberfest	4s
ecom-backend	7s
mapbox	7s
react-dashboard	8s
react-muze	5s
auth0	7s
aws-web-analytics	6s
bigquery-public-datasets	4s
deepnote	8s
google-charts-moma	5s
graphql-api-metrics-dashboard	7s
multitenancy-workshop	1m 38s
multi-tenant-analytics	7s
web-analytics	4s
real-time-dashboard	7s
event-analytics	6s
	7m 57s

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