[Revert] Reverts Ninja (#15516)

* Revert "[Antag] add space ninja as midround antag (#14069)"

This reverts commit c1cda0dbf8.

* Revert "[Fix] move ninja objectives into NinjaRole (#15490)"

This reverts commit 251f429fb3.

Resources/Locale/en-US/objectives/conditions/doorjack-condition.ftl

@@ -1,2 +0,0 @@
-objective-condition-doorjack-title = Doorjack {$count} doors on the station.
-objective-condition-doorjack-description = Use your gloves to doorjack {$count} airlocks on the station.

Resources/Locale/en-US/objectives/conditions/download-condition.ftl

@@ -1,2 +0,0 @@
-objective-condition-download-title = Download {$count} research nodes.
-objective-condition-download-description = Use your gloves on a research server to download its data.

Resources/Locale/en-US/objectives/conditions/spider-charge-condition.ftl

@@ -1,3 +0,0 @@
-objective-condition-spider-charge-title = Detonate the spider charge in {$location}
-objective-condition-spider-charge-no-target = Detonate the spider charge... somewhere?
-objective-condition-spider-charge-description = Detonate your starter bomb in a specific location. Note that the bomb will not work anywhere else!

Resources/Locale/en-US/objectives/conditions/survive-condition.ftl

@@ -1,2 +0,0 @@
-objective-condition-survive-title = Survive
-objective-condition-survive-description = You wouldn't be a very good ninja if you died, now would you?

Resources/Locale/en-US/objectives/conditions/terror-condition.ftl

@@ -1,2 +0,0 @@
-objective-condition-terror-title = Call in a threat
-objective-condition-terror-description = Use your gloves on a communication console in order to bring another threat to the station.