Remove .pkgr.yml as not used for 4 years

The latest maintenance was in 2016-09 at 570b25c6.
Signed-off-by: tnir <takninnovationresearch@gmail.com>

.pkgr.yml

-user: git
-group: git
-services:
-  - postgres
-before_precompile: ./bin/pkgr_before_precompile.sh
-env:
-  - SKIP_STORAGE_VALIDATION=true
-targets:
-  debian-7: &wheezy
-    build_dependencies:
-      - libkrb5-dev
-      - libicu-dev
-      - cmake
-      - pkg-config
-    dependencies:
-      - libicu48
-      - libpcre3
-      - git
-  ubuntu-12.04: *wheezy
-  ubuntu-14.04:
-    build_dependencies:
-      - libkrb5-dev
-      - libicu-dev
-      - cmake
-      - pkg-config
-    dependencies:
-      - libicu52
-      - libpcre3
-      - git
-  ubuntu-16.04:
-    build_dependencies:
-      - libkrb5-dev
-      - libicu-dev
-      - cmake
-      - pkg-config
-    dependencies:
-      - libicu55
-      - libpcre3
-      - git
-  centos-6:
-    build_dependencies:
-      - krb5-devel
-      - libicu-devel
-      - cmake
-      - pkgconfig
-    dependencies:
-      - libicu
-      - pcre
-      - git

changelogs/unreleased/remove-pkgr-yml.yml

+---
+title: Remove .pkgr.yml as not used for 4 years
+merge_request: 42156
+author: tnir
+type: other