Remove unused graphql/argument component

components/graphql/argument.vue

@@ -1,32 +0,0 @@
-<template>
-  <span>
-    <span class="argumentName">
-      {{ argName }}
-    </span>
-    :
-    <typelink :type="argType" :jumpTypeCallback="jumpCallback" />
-  </span>
-</template>
-
-<style scoped lang="scss"></style>
-
-<script>
-export default {
-  props: {
-    gqlArg: Object,
-  },
-
-  computed: {
-    argName() {
-      return this.gqlArg.name
-    },
-    argType() {
-      return this.gqlArg.type
-    },
-  },
-
-  methods: {
-    jumpCallback(typeName) {},
-  },
-}
-</script>