Fix namespaces and optimize imports (#1651)

* Fix namespaces and optimize imports

* Cleanup fixes

* Merge conflict fixes

* Merge conflict fixes

* Merge conflict fixes

Content.Shared/GameObjects/EntitySystems/ExamineSystemShared.cs

@@ -40,7 +40,7 @@ namespace Content.Shared.GameObjects.EntitySystems
                 return false;
             }
 
-            return EntitySystem.Get<SharedInteractionSystem>()
+            return Get<SharedInteractionSystem>()
                 .InRangeUnobstructed(examiner.Transform.MapPosition, examined.Transform.MapPosition,
                     ExamineRange, predicate: entity => entity == examiner || entity == examined, ignoreInsideBlocker:true);
         }

Content.Shared/GameObjects/EntitySystems/SharedCombatModeSystem.cs

@@ -1,12 +1,7 @@
 using Content.Shared.GameObjects.Components.Mobs;
 using Content.Shared.GameObjects.EntitySystemMessages;
-using Content.Shared.Interfaces;
 using Robust.Shared.GameObjects;
 using Robust.Shared.GameObjects.Systems;
-using Robust.Shared.Interfaces.Random;
-using Robust.Shared.IoC;
-using Robust.Shared.Random;
-using Logger = Robust.Shared.Log.Logger;
 
 namespace Content.Shared.GameObjects.EntitySystems
 {

Content.Shared/GameObjects/EntitySystems/SharedConstructionSystem.cs

@@ -1,6 +1,5 @@
 using System;
 using Content.Shared.Construction;
-using JetBrains.Annotations;
 using Robust.Shared.GameObjects;
 using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.IoC;

Content.Shared/GameObjects/EntitySystems/SharedGasTileOverlaySystem.cs

@@ -2,7 +2,6 @@
 using Robust.Shared.GameObjects;
 using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.Map;
-using Robust.Shared.Maths;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.GameObjects.EntitySystems