Remove ShimmerGradient

It's unused

src/CMakeLists.txt

@@ -170,7 +170,6 @@ qt_add_qml_module(neochat URI org.kde.neochat NO_PLUGIN
         qml/NeochatMaximizeComponent.qml
         qml/FancyEffectsContainer.qml
         qml/TypingPane.qml
-        qml/ShimmerGradient.qml
         qml/QuickSwitcher.qml
         qml/HoverActions.qml
         qml/ChatBox.qml

src/qml/ShimmerGradient.qml

@@ -1,39 +0,0 @@
-// SPDX-FileCopyrightText: 2021 Carson Black <uhhadd@gmail.com>
-// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
-
-// Not to be confused with the Shimmer project.
-// I like their gradiented GTK themes though.
-
-import QtQuick
-import org.kde.kirigami as Kirigami
-
-Gradient {
-    id: root
-
-    orientation: Gradient.Horizontal
-
-    property color color: Kirigami.Theme.textColor
-    property color translucent: Qt.rgba(color.r, color.g, color.b, 0.2)
-    property color bright: Qt.rgba(color.r, color.g, color.b, 0.3)
-    property real pos: 0.5
-    property real offset: 0.6
-
-    property SequentialAnimation ani: SequentialAnimation {
-        running: true
-        loops: Animation.Infinite
-        NumberAnimation {
-            from: -2.0
-            to: 2.0
-            duration: 700
-            target: root
-            properties: "pos"
-        }
-        PauseAnimation {
-            duration: 300
-        }
-    }
-
-    GradientStop { position: root.pos-root.offset; color: root.translucent }
-    GradientStop { position: root.pos; color: root.bright }
-    GradientStop { position: root.pos+root.offset; color: root.translucent }
-}