Hide Add to Batch button when suggestions can't be applied

app/assets/javascripts/vue_shared/components/markdown/suggestion_diff_header.vue

@@ -53,14 +53,9 @@ export default {
     },
     tooltipMessage() {
       return this.canApply
-        ? __('This also resolves the discussion')
+        ? __('This also resolves this thread')
         : __("Can't apply as this line has changed or the suggestion already matches its content.");
     },
-    tooltipMessageBatch() {
-      return !this.canBeBatched
-        ? __("Suggestions that change line count can't be added to batches, yet.")
-        : this.tooltipMessage;
-    },
     isDisableButton() {
       return this.isApplying || !this.canApply;
     },
@@ -129,15 +124,14 @@ export default {
       </gl-deprecated-button>
     </div>
     <div v-else class="d-flex align-items-center">
-      <span v-if="canBeBatched" v-gl-tooltip.viewport="tooltipMessageBatch" tabindex="0">
       <gl-deprecated-button
+        v-if="canBeBatched && !isDisableButton"
         class="btn-inverted js-add-to-batch-btn btn-grouped"
         :disabled="isDisableButton"
         @click="addSuggestionToBatch"
       >
         {{ __('Add suggestion to batch') }}
       </gl-deprecated-button>
-      </span>
       <span v-gl-tooltip.viewport="tooltipMessage" tabindex="0">
         <gl-deprecated-button
           class="btn-inverted js-apply-btn btn-grouped"

locale/gitlab.pot

@@ -22379,9 +22379,6 @@ msgstr ""
 msgid "Suggestions must all be on the same branch."
 msgstr ""
 
-msgid "Suggestions that change line count can't be added to batches, yet."
-msgstr ""
-
 msgid "Suggestions:"
 msgstr ""
 
@@ -23397,7 +23394,7 @@ msgstr ""
 msgid "This also resolves all related threads"
 msgstr ""
 
-msgid "This also resolves the discussion"
+msgid "This also resolves this thread"
 msgstr ""
 
 msgid "This application was created by %{link_to_owner}."

spec/frontend/vue_shared/components/markdown/suggestion_diff_header_spec.js

@@ -71,7 +71,7 @@ describe('Suggestion Diff component', () => {
 
   it('renders correct tooltip message for apply button', () => {
     createComponent();
-    expect(wrapper.vm.tooltipMessage).toBe('This also resolves the discussion');
+    expect(wrapper.vm.tooltipMessage).toBe('This also resolves this thread');
   });
 
   describe('when apply suggestion is clicked', () => {
@@ -227,11 +227,10 @@ describe('Suggestion Diff component', () => {
       createComponent({ canApply: false });
     });
 
-    it('disables apply suggestion and add to batch buttons', () => {
+    it('disables apply suggestion and hides add to batch button', () => {
       expect(findApplyButton().exists()).toBe(true);
-      expect(findAddToBatchButton().exists()).toBe(true);
+      expect(findAddToBatchButton().exists()).toBe(false);
       expect(findApplyButton().attributes('disabled')).toBe('true');
-      expect(findAddToBatchButton().attributes('disabled')).toBe('true');
     });
 
     it('renders correct tooltip message for apply button', () => {