Goreleaser: remove 'contents' section of nfpms. It breaks packages an…

…d redundant at all.

.goreleaser.yml

@@ -27,8 +27,4 @@ nfpms:
     description: Command-line admin tool for observing and troubleshooting Postgres.
     license: BSD-3
     formats: [ deb, rpm, apk ]
-    bindir: /usr/bin
-    contents:
-      - src: /usr/bin/pgcenter
-        dst: /bin/pgcenter
-        type: "symlink"
+    bindir: /usr/bin