[MM-205]: removed default values from create_issue.jsx (#841)

Author: Kshitij-Katiyar

Diff for: webapp/src/components/modals/create_issue/create_issue.jsx

@@ -197,7 +197,6 @@ export default class CreateIssueModal extends PureComponent {
                     label='Title for the GitHub Issue'
                     type='input'
                     required={true}
-                    disabled={false}
                     maxLength={MAX_TITLE_LENGTH}
                     value={this.state.issueTitle}
                     onChange={this.handleIssueTitleChange}