Revert "Merge branch '_acet-fix-expanding-context-lines' into 'master'"

This reverts commit 6c6988cb, reversing
changes made to 0d488c7b.

app/assets/javascripts/diffs/components/diff_line_gutter_content.vue

@@ -190,6 +190,7 @@ export default {
       </button>
       <a
         v-if="lineNumber"
+        v-once
         :data-linenumber="lineNumber"
         :href="lineHref"
       >

app/assets/javascripts/diffs/components/inline_diff_table_row.vue

@@ -101,6 +101,7 @@ export default {
       class="diff-line-num new_line"
     />
     <td
+      v-once
       :class="line.type"
       class="line_content"
       v-html="line.richText"

app/assets/javascripts/diffs/components/parallel_diff_table_row.vue

@@ -119,6 +119,7 @@ export default {
       class="diff-line-num old_line"
     />
     <td
+      v-once
       :id="line.left.lineCode"
       :class="parallelViewLeftLineType"
       class="line_content parallel left-side"
@@ -139,6 +140,7 @@ export default {
       class="diff-line-num new_line"
     />
     <td
+      v-once
       :id="line.right.lineCode"
       :class="line.right.type"
       class="line_content parallel right-side"