avoid manual loading of the module system

.gitlab-ci.yml

-
 variables:
   GIT_SUBMODULE_STRATEGY: recursive
 
@@ -9,7 +8,6 @@ stages:
 build-gcc64:
   stage: build
   before_script:
-    - . /sw/rhel6-x64/etc/profile.mistral && module list
     - module load libtool autoconf automake
     - cd libcdi && git checkout develop && ./autogen.sh && cd ..
     - autoreconf -vfi --no-recursive
@@ -28,8 +26,6 @@ build-gcc64:
 check-gcc64:
   stage: check
   needs: ["build-gcc64"]
-  before_script:
-    - . /sw/rhel6-x64/etc/profile.mistral && module list
   script:
     - module load gcc/6.4.0
     - cd gcc64 && make check
@@ -41,7 +37,6 @@ check-gcc64:
 build-intel18:
   stage: build
   before_script:
-    - . /sw/rhel6-x64/etc/profile.mistral && module list
     - module load libtool autoconf automake
     - cd libcdi && git checkout develop && ./autogen.sh && cd ..
     - autoreconf -vfi --no-recursive
@@ -60,8 +55,6 @@ build-intel18:
 check-intel18:
   stage: check
   needs: ["build-intel18"]
-  before_script:
-    - . /sw/rhel6-x64/etc/profile.mistral && module list
   script:
     - module load gcc/6.4.0 intel
     - cd intel18 && make check