Without --yaml, MSF_DATABASE_CONFIG or ~/.msf4/database.yml, project "database.yml" wins --defer-module-loads

MSP-11671

Run `msfconsole` with `--defer-module-loads` to change average (n=10)
runtime of `/usr/bin/time rake CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:115 cucumber:boot` from
51.42 seconds to 37.76 seconds (-26.57%).  (Change of -72.98% since
f950f30.)  Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.

Author: limhoff-r7

features/msfconsole/database_yml.feature

@@ -127,7 +127,7 @@ Feature: `msfconsole` `database.yml`
         database: project_metasploit_framework_test
         username: project_metasploit_framework_test
       """
-    When I run `msfconsole --environment test --execute-command exit`
+    When I run `msfconsole --defer-module-loads --environment test --execute-command exit`
     Then the output should contain "project_metasploit_framework_test"