Remove Drone configuration

Signed-off-by: Graham <gpe@openrs2.org>

.drone.yml

@@ -1,30 +0,0 @@
-kind: pipeline
-type: docker
-name: default
-
-steps:
-  - name: build
-    image: registry.openrs2.org/openrs2-dev
-    commands:
-      - ./gradlew --no-daemon clean build
-
-  - name: deploy
-    image: registry.openrs2.org/openrs2-dev
-    commands:
-      - install -dm0700 $${HOME}/.ssh
-      - echo -n "$${SSH_KEY}" > $${HOME}/.ssh/id_ed25519
-      - chmod 0600 $${HOME}/.ssh/id_ed25519
-      - ./gradlew --no-daemon publish
-    environment:
-      ORG_GRADLE_PROJECT_openrs2Username:
-        from_secret: repo_username
-      ORG_GRADLE_PROJECT_openrs2Password:
-        from_secret: repo_password
-      SSH_KEY:
-        from_secret: ssh_key
-    when:
-      branch:
-        - master
-      event:
-        exclude:
-          - pull_request

.gitignore

@@ -1,5 +1,4 @@
 .*
-!.drone.yml
 !.editorconfig
 !.git*
 !.idea