[services] Delete unused COMM_TEST_SERVICES

Summary:
Part of [[ https://linear.app/comm/issue/ENG-4098/deprecate-remaining-shared-c-services-code | ENG-4098 ]].
We don't use `COMM_TEST_SERVICES` anymore - it was used to unit test C++ services and build test-only version of docker images.

Test Plan: Git grep `COMM_TEST_SERVICES` - no results.

Reviewers: jon, varun

Reviewed By: jon, varun

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D8361

services/.env

@@ -3,4 +3,3 @@ COMM_SERVICES_PORT_BACKUP=50052
 COMM_SERVICES_PORT_BLOB=50053
 COMM_SERVICES_PORT_IDENTITY=50054
 COMM_SERVICES_PORT_FEATURE_FLAGS=50055
-COMM_TEST_SERVICES=0

services/docker-compose.yml

@@ -25,7 +25,6 @@ services:
       dockerfile: services/backup/Dockerfile
       context: ../
       args:
-        - COMM_TEST_SERVICES=${COMM_TEST_SERVICES}
         - COMM_SERVICES_SANDBOX=${COMM_SERVICES_SANDBOX}
         - LOCALSTACK_URL=http://localstack:4566
         - BLOB_SERVICE_URL=http://blob-server:50051
@@ -42,7 +41,6 @@ services:
       dockerfile: services/blob/Dockerfile
       context: ../
       args:
-        - COMM_TEST_SERVICES=${COMM_TEST_SERVICES}
         - COMM_SERVICES_SANDBOX=${COMM_SERVICES_SANDBOX}
     image: commapp/blob-server:0.1
     ports:
@@ -60,6 +58,7 @@ services:
     image: commapp/identity-server:0.1
     ports:
       - '${COMM_SERVICES_PORT_IDENTITY}:50054'
+  # feature-flags
   feature-flags-server:
     depends_on:
       - localstack

services/package.json

@@ -14,7 +14,6 @@
     "run-feature-flags-service": "./scripts/run_server_image.sh feature-flags",
     "run-feature-flags-service-in-sandbox": "COMM_SERVICES_SANDBOX=1 ./scripts/run_server_image.sh feature-flags",
     "run-all-services": "./scripts/run_all_services.sh",
-    "run-unit-tests": "./scripts/run_unit_tests.sh",
     "run-integration-tests": "./scripts/run_integration_tests.sh",
     "run-performance-tests": "./scripts/run_performance_tests.sh",
     "run-all-services-in-sandbox": "COMM_SERVICES_SANDBOX=1 ./scripts/run_all_services.sh",

services/scripts/run_integration_tests.sh

@@ -2,7 +2,6 @@
 
 set -e
 
-export COMM_TEST_SERVICES=1
 export COMM_SERVICES_SANDBOX=1
 
 SERVICES=$(./scripts/list_services.sh)