"Without --yaml or MSF_DATABASE_CONFIG, ~/.msf4/database.yml wins" --execute-command

MSP-11671

Run `msfconsole` with `--execute-command exit` instead of interactively
and typing exit.  Average (n=10) runtime changes from 138.91 seconds to
51.79 seconds (-62.72%). Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.

Author: limhoff-r7

features/msfconsole/database_yml.feature

@@ -109,9 +109,7 @@ Feature: `msfconsole` `database.yml`
         database: project_metasploit_framework_test
         username: project_metasploit_framework_test
       """
-    When I run `msfconsole --environment test` interactively
-    And I wait for stdout to contain "Free Metasploit Pro trial: http://r-7.co/trymsp"
-    And I type "exit"
+    When I run `msfconsole --environment test --execute-command exit`
     Then the output should contain "user_metasploit_framework_test"
 
   Scenario: Without --yaml, MSF_DATABASE_CONFIG or ~/.msf4/database.yml, project "database.yml" wins