Removing sample messages from App

src/components/App/__snapshots__/test.js.snap

@@ -12,21 +12,5 @@ exports[`App rendering 1`] = `
       }
     }
   />
-  <Message
-    heading="Sample Error"
-    type="error"
-  >
-    <p>
-      Sample error message
-    </p>
-  </Message>
-  <Message
-    heading="Sample Warning"
-    type="warning"
-  >
-    <p>
-      Sample warning message
-    </p>
-  </Message>
 </React.Fragment>
 `;

src/components/App/index.js

@@ -165,12 +165,6 @@ class App extends React.PureComponent {
         syntax={ syntax }
         expr={ expr }
         onSubmit={ this.handleSubmit }/>
-      <Message type="error" heading="Sample Error">
-        <p>Sample error message</p>
-      </Message>
-      <Message type="warning" heading="Sample Warning">
-        <p>Sample warning message</p>
-      </Message>
       {
         loading && <div className={ style.loader }>
           <LoaderIcon />