Fix the depends-on gating for basic.sh

The gate-quickstart role uninstalls the 'tripleo-quickstart-extras'
package from the virtual env if it finds a change for it, while
modifying the quickstart-extras-requirements.txt to get it reinstalled
from the locally checked out version with the next run. That run
requires the --bootstrap option to rerun the pip commands and reinstall.
This was missing from basic.sh.

The previous workaround is not needed which manually installed the
repo. Removing the workaround fixes a bug that broke devmode.sh.

Closes-bug: #1696532
Change-Id: I65a1b286a03e9f039c75b930e3eca5ceedeb0fd6

ci-scripts/basic.sh

@@ -30,6 +30,7 @@ source $CI_SCRIPT_DIR/include-gate-changes.sh
 bash quickstart.sh \
     --working-dir $WORKSPACE/ \
     --no-clone \
+    --bootstrap \
     --release ${CI_ENV:+$CI_ENV/}$RELEASE${REL_TYPE:+-$REL_TYPE} \
     $VIRTHOST
 

ci-scripts/include-gate-changes.sh

@@ -23,11 +23,3 @@ if [ -d $WORKSPACE/tripleo-quickstart-gate-repo ]; then
     # Change into the new quickstart directory to use the new changes
     cd $WORKSPACE/tripleo-quickstart
 fi
-export VIRTUAL_ENV=$WORKSPACE
-export PATH="$VIRTUAL_ENV/bin:$PATH"
-pushd $WORKSPACE/tripleo-quickstart
-python setup.py install
-popd
-pushd $WORKSPACE/tripleo-quickstart-extras
-python setup.py install
-popd