Remove qtquickcontrols from .gitmodules

This repository is not available in Qt6.

Every repository that recommends qtquickcontrols should recommend
qtquickcontrols2 instead.  However, this has been merged into
qtdeclarative, which means that the existent dependencies on
qtdeclarative are sufficient.

Pick-to: 6.2
Change-Id: I30980bbbe9ca495f12dc591a693ebc3a4a6a01bc
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>

.gitmodules

@@ -52,7 +52,7 @@
 	priority = 30
 [submodule "qtdoc"]
 	depends = qtdeclarative qttools
-	recommends = qtmultimedia qtquickcontrols
+	recommends = qtmultimedia
 	path = qtdoc
 	url = ../qtdoc.git
 	branch = dev
@@ -138,13 +138,6 @@
 	url = ../qtgraphicaleffects.git
 	branch = dev
 	status = ignore
-[submodule "qtquickcontrols"]
-	depends = qtdeclarative
-	recommends = qtgraphicaleffects
-	path = qtquickcontrols
-	url = ../qtquickcontrols.git
-	branch = dev
-	status = ignore
 [submodule "qtserialbus"]
 	depends = qtbase
 	recommends = qtserialport
@@ -174,7 +167,7 @@
 	status = addon
 [submodule "qtwebengine"]
 	depends = qtdeclarative
-	recommends = qtquickcontrols qtlocation qtwebchannel qttools
+	recommends = qtlocation qtwebchannel qttools
 	path = qtwebengine
 	url = ../qtwebengine.git
 	branch = dev
@@ -209,7 +202,7 @@
 	status = addon
 [submodule "qtvirtualkeyboard"]
 	depends = qtbase qtdeclarative qtsvg
-	recommends = qtmultimedia qtquickcontrols
+	recommends = qtmultimedia
 	path = qtvirtualkeyboard
 	url = ../qtvirtualkeyboard.git
 	branch = dev