Remove unused ft-intersection-observer component (#2563)

src/renderer/components/ft-intersection-observer/ft-intersection-observer.js

@@ -1,54 +0,0 @@
-import Vue from 'vue'
-
-export default Vue.extend({
-  name: 'FtIntersectionObserver',
-  props: {
-    checkOnMount: {
-      type: Boolean,
-      default: false
-    },
-    margin: {
-      type: String,
-      default: '0px 0px 0px 0px'
-    },
-    observeParent: {
-      type: Boolean,
-      default: false
-    },
-    threshold: {
-      type: Number,
-      default: 1
-    }
-  },
-  data() {
-    const observer = new IntersectionObserver(this.handleIntersection, {
-      rootMargin: this.margin,
-      threshold: this.threshold
-    })
-    const runOnce = false
-
-    return {
-      observer,
-      runOnce
-    }
-  },
-  mounted() {
-    this.observer.observe(this.observeParent ? this.$refs.elem.parentElement : this.$refs.elem)
-  },
-  beforeDestroy() {
-    this.observer.disconnect()
-  },
-  methods: {
-    handleIntersection(entries) {
-      if (!this.runOnce) {
-        this.runOnce = true
-
-        if (!this.checkOnMount) {
-          return
-        }
-      }
-
-      this.$emit(entries[0].isIntersecting ? 'intersected' : 'unintersected')
-    }
-  }
-})

src/renderer/components/ft-intersection-observer/ft-intersection-observer.vue

@@ -1,5 +0,0 @@
-<template>
-  <div ref="elem" />
-</template>
-
-<script src="./ft-intersection-observer.js" />