Move Workspace::activeClient and ::mostRecentlyActivatedClient back to header

Now all is moved they can be inlined again.

workspace.cpp

@@ -1666,16 +1666,6 @@ bool Workspace::hasClient(const AbstractClient *c)
     return false;
 }
 
-AbstractClient *Workspace::activeClient() const
-{
-    return active_client;
-}
-
-AbstractClient *Workspace::mostRecentlyActivatedClient() const
-{
-    return should_get_focus.count() > 0 ? should_get_focus.last() : active_client;
-}
-
 } // namespace
 
 #include "workspace.moc"

workspace.h

@@ -634,6 +634,16 @@ inline bool Workspace::initializing() const
     return workspaceInit;
 }
 
+inline AbstractClient *Workspace::activeClient() const
+{
+    return active_client;
+}
+
+inline AbstractClient *Workspace::mostRecentlyActivatedClient() const
+{
+    return should_get_focus.count() > 0 ? should_get_focus.last() : active_client;
+}
+
 inline void Workspace::addGroup(Group* group)
 {
     emit groupAdded(group);