api: Fix generated_api_shadow BUILD (envoyproxy#16330)

Commit Message: api: Fix generated_api_shadow BUILD
Additional Description:

Some changes were made to the api/BUILD file in envoyproxy#16077 which were not propagated to generated_api_shadow
this is also a possible reason that a dev reported an issue with ci formatting

Signed-off-by: Ryan Northey <ryan@synca.io>
Signed-off-by: Gokul Nair <gnair@twitter.com>

generated_api_shadow/BUILD

@@ -133,18 +133,12 @@ proto_library(
         "//envoy/config/common/matcher/v3:pkg",
         "//envoy/config/core/v3:pkg",
         "//envoy/config/endpoint/v3:pkg",
-        "//envoy/config/filter/thrift/router/v2alpha1:pkg",
         "//envoy/config/grpc_credential/v3:pkg",
-        "//envoy/config/health_checker/redis/v2:pkg",
         "//envoy/config/listener/v3:pkg",
         "//envoy/config/metrics/v3:pkg",
         "//envoy/config/overload/v3:pkg",
         "//envoy/config/ratelimit/v3:pkg",
         "//envoy/config/rbac/v3:pkg",
-        "//envoy/config/resource_monitor/fixed_heap/v2alpha:pkg",
-        "//envoy/config/resource_monitor/injected_resource/v2alpha:pkg",
-        "//envoy/config/retry/omit_canary_hosts/v2:pkg",
-        "//envoy/config/retry/previous_hosts/v2:pkg",
         "//envoy/config/route/v3:pkg",
         "//envoy/config/tap/v3:pkg",
         "//envoy/config/trace/v3:pkg",