Remove redundant repo configuration

Author: artemgavrilov

pmm_qa/percona-distribution-postgresql/tasks/install-pdpgsql.yml

@@ -42,12 +42,7 @@
 
 - name: Prepare installation of PG Stat Monitor from sources
   shell: |
-    docker exec -u root {{ container_prefix }}{{ item }} sh -c '
-      wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - &&
-      echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list &&
-      apt-get update &&
-      apt-get -y install git clang-18 llvm-18 build-essential percona-postgresql-server-dev-{{ pdpgsql_version }}
-    '
+    docker exec -u root {{ container_prefix }}{{ item }} apt-get install -y git clang-18 llvm-18 build-essential percona-postgresql-server-dev-{{ pdpgsql_version }}
   become: true
   loop: "{{ range(1, nodes_count | int + 1) | list }}"
   when: pgsm_branch | length > 0