bugfix: schemas/Makefile: $(confirmRmPublicSchema): only prompt to delete the schema if it actually exists. this avoids prompting to remove a non-existent schema at the beginning of bin/import_all, which requires user attention. since bin/import_all is often run with a delayed start (e.g. to wait for a staging table reinstall to complete), the user may not be at the terminal when this message is displayed, and without this fix, the import would be prevented from running until they return.
bugfix: schemas/Makefile: $(confirmRmPublicSchema): only prompt to delete the schema if it actually exists. this avoids prompting to remove a non-existent schema at the beginning of bin/import_all, which requires user attention. since bin/import_all is often run with a delayed start (e.g. to wait for a staging table reinstall to complete), the user may not be at the terminal when this message is displayed, and without this fix, the import would be prevented from running until they return.