Removed Circle-CI reference. (#13824)
Removed Circle-CI reference. (#13824)

Signed-off-by: Manish Kumar <7b764799e0d191b4af5b532b0905b107dd9dc187@india.nec.com>
envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy