[BUGFIX] Removed export statement printing environment during CI builds

# Conflicts:
#	.gitlab-ci.yml

.gitlab-ci.yml

@@ -9,7 +9,6 @@
       - export NUM_CORES=$(nproc --all)
       - export MAX_BUILD_CORES=$(( $(awk '( $1 == "MemTotal:" ) { print $2 }' /proc/meminfo) / ( 4 * 1024 * 1024  ) ))
       - "[[ $MAX_BUILD_CORES -lt $NUM_CORES ]] && export NUM_BUILD_CORES=$MAX_BUILD_CORES || export NUM_BUILD_CORES=$NUM_CORES"
-      - export
       - $CXX --version
       - cmake --version
       - ccache --version
@@ -698,7 +697,6 @@ cppcheck:
 coverage:
    image: walberla/coverage
    script:
-      - export
       - $CXX --version
       - cmake --version
       - gcovr --version
@@ -743,7 +741,6 @@ coverage:
       - export OMP_NUM_THREADS=4
       - export OMP_WAIT_POLICY="PASSIVE"
       - export MSMPI_DISABLE_SHM=1
-      - export
       - cmake --version
       - mkdir build
       - cd build