Remove the `docker.cli` prefixed attributes from
`OTEL_RESOURCE_ATTRIBUTES` after the telemetry provider has been created
within a plugin. This prevents accidentally sending the attributes to
something downstream for the user.
This also fixes an issue with compose where the self-injected `OTEL_RESOURCE_ATTRIBUTES`
would override an existing attribute in the environment file because the
"user environment" overrode the environment file, but the "user
environment" was created by the `docker` tool rather than by the user's
environment.
When `OTEL_RESOURCE_ATTRIBUTES` is empty after pruning, the environment
variable is unset.
Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
8890a1c929