Remove stub injector methods

worldedit-core/src/main/java/com/sk89q/worldedit/session/ClipboardHolder.java

@@ -120,8 +120,6 @@ public class ClipboardHolder {
         clipboard = null;
     }
 
-    public static Class<?> inject() {
-        return ClipboardHolder.class;
-    }
+
 
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/PasteBuilder.java

@@ -132,7 +132,5 @@ public class PasteBuilder {
         return copy;
     }
 
-    public static Class<?> inject() {
-        return PasteBuilder.class;
-    }
+
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/SessionManager.java

@@ -325,9 +325,7 @@ public class SessionManager {
         }
     }
 
-    public static Class<?> inject() {
-        return SessionManager.class;
-    }
+
 
 
 }

worldedit-core/src/main/java/com/sk89q/worldedit/session/request/Request.java

@@ -137,7 +137,5 @@ public final class Request {
         threadLocal.remove();
     }
 
-    public static Class<?> inject() {
-        return Request.class;
-    }
+
 }