Delete .gitlab-ci.yml

.gitlab-ci.yml

-variables:
-  GIT_SUBMODULE_STRATEGY: recursive
-
-stages:
-  - build
-
-build-ws:
-  image: ros:melodic-ros-base-bionic
-  stage: build
-  script:
-    - apt-get update
-    - apt-get install -y ros-melodic-libfranka python-catkin-tools libeigen3-dev 
-    - echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc
-    - source ~/.bashrc
-    - rosdep install -y --from-paths .
-    - catkin build
-  tags:
-  - highmem