Remove unused style

components/header/back-button.js

@@ -4,7 +4,7 @@ import {
   TouchableOpacity,
   View
 } from 'react-native'
-import styles, { iconStyles } from '../../styles'
+import styles from '../../styles'
 import NavigationArrow from './navigation-arrow'
 import Icon from 'react-native-vector-icons/Entypo'
 
@@ -21,10 +21,9 @@ export default function BackButtonHeader(props) {
           {props.title}
         </Text>
       </View>
-      <TouchableOpacity style={styles.hiddenIcon}>
+      <TouchableOpacity>
         <Icon
           name={'chevron-thin-right'}
-          {...iconStyles.hiddenIcon}
         />
       </TouchableOpacity>
     </View>

styles/index.js

@@ -176,7 +176,7 @@ export default StyleSheet.create({
     fontFamily: textFontBold,
     marginTop: 10
   },
-  symptomInfoIcon: {
+  symptomDeleteIcon: {
     marginRight: 20,
     marginLeft: 20
   },
@@ -243,9 +243,6 @@ export default StyleSheet.create({
   navigationArrow: {
     padding: 20
   },
-  hiddenIcon: {
-    padding: 20
-  },
   menu: {
     backgroundColor: primaryColor,
     alignItems: 'center',
@@ -484,9 +481,5 @@ export const iconStyles = {
   infoInHeading: {
     marginRight: 5,
     color: 'black'
-  },
-  hiddenIcon: {
-    size: 20,
-    display: 'none'
   }
 }