Git: Remove gitorious code

Gitorious has changed their APIs a while ago and nobody seems to have
noticed. The only bug report I got was from Christian who tests Creator
regularly. So the code seems to be unused, which I find not surprising
considering the limited popularity of gitorious nowadays.

Task-number: QTCREATORBUG-12858
Change-Id: Id92747fd146434ad737315320fa08afd96223a7e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

src/plugins/git/git.qbs

@@ -75,30 +75,6 @@ QtcPlugin {
         "stashdialog.ui",
     ]
 
-    Group {
-        name: "Gitorious"
-        prefix: "gitorious/"
-        files: [
-            "gitorious.cpp",
-            "gitorious.h",
-            "gitoriousclonewizard.cpp",
-            "gitoriousclonewizard.h",
-            "gitorioushostwidget.cpp",
-            "gitorioushostwidget.h",
-            "gitorioushostwidget.ui",
-            "gitorioushostwizardpage.cpp",
-            "gitorioushostwizardpage.h",
-            "gitoriousprojectwidget.cpp",
-            "gitoriousprojectwidget.h",
-            "gitoriousprojectwidget.ui",
-            "gitoriousprojectwizardpage.cpp",
-            "gitoriousprojectwizardpage.h",
-            "gitoriousrepositorywizardpage.cpp",
-            "gitoriousrepositorywizardpage.h",
-            "gitoriousrepositorywizardpage.ui",
-        ]
-    }
-
     Group {
         name: "Gerrit"
         prefix: "gerrit/"