removing testing pipeline in .drone.ml

* proved that the issue was in the image OS not being
  up to date enough to include the needed pkg, which
  was causing the builds to fail

.drone.yml

@@ -1,20 +1,3 @@
----
-kind: pipeline
-name: gcc
-
-platform:
-  arch: amd64
-
-steps:
-- name: build
-  pull: always
-  image: immawanderer/archlinux-cdev:latest
-  commands:
-  - pacman -Syu --noconfirm --needed gcc cmake
-  - cmake CMakeLists.txt
-  - make
-
-
 ---
 kind: pipeline
 name: testing-amd64