Move QTPLUGIN qmake macro to src.pro.

src/src.pro

@@ -28,6 +28,10 @@ nox {
   DEFINES += DISABLE_GUI
 } else {
   QT += xml
+  CONFIG(static) {
+    DEFINES += QBT_STATIC_QT
+    QTPLUGIN += qico
+  }
   TARGET = qbittorrent
 }
 QT += network

winconf.pri

@@ -45,8 +45,3 @@ else {
 
 DEFINES += WITH_GEOIP_EMBEDDED
 message("On Windows, GeoIP database must be embedded.")
-
-CONFIG(static) {
-	DEFINES += QBT_STATIC_QT
-	QTPLUGIN += qico
-}