Revert "Add --no-dev to composer/symfony build flavors"
Revert "Add --no-dev to composer/symfony build flavors"

This reverts commit 1d28fc6a7b88dfccfcd2382f3c8f66363aa8c18f.

pjcdawkins/platformsh-cli,platformsh/platformsh-cli,platformsh/platformsh-cli,pjcdawkins/platformsh-cli,pjcdawkins/platformsh-cli,platformsh/platformsh-cli