Remove deployment.pri from the minibrowser example

The minibrowser example was created using the Qt Creator templates,
which includes hard-coded install paths defined in deployment.pri.
For user applications that might make sense, but it doesn't for Qt
examples, instead we should install it into Qt's example directory.

Task-number: QTBUG-49431
Change-Id: Ia4c33574547a17a186125f10b3eaa14512f81dc8
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

examples/webview/minibrowser/deployment.pri

-android-no-sdk {
-    target.path = /data/user/qt
-    export(target.path)
-    INSTALLS += target
-} else:android {
-    x86 {
-        target.path = /libs/x86
-    } else: armeabi-v7a {
-        target.path = /libs/armeabi-v7a
-    } else {
-        target.path = /libs/armeabi
-    }
-    export(target.path)
-    INSTALLS += target
-} else:unix {
-    isEmpty(target.path) {
-        qnx {
-            target.path = /tmp/$${TARGET}/bin
-        } else {
-            target.path = /opt/$${TARGET}/bin
-        }
-        export(target.path)
-    }
-    INSTALLS += target
-}
-
-export(INSTALLS)

examples/webview/minibrowser/minibrowser.pro

 TEMPLATE = app
+TARGET = minibrowser
 
 QT += qml quick webview
 
@@ -10,8 +11,5 @@ RESOURCES += qml.qrc
 
 EXAMPLE_FILES += doc
 
-# Additional import path used to resolve QML modules in Qt Creator's code model
-QML_IMPORT_PATH =
-
-# Default rules for deployment.
-include(deployment.pri)
+target.path = $$[QT_INSTALL_EXAMPLES]/webview/minibrowser
+INSTALLS += target