Run eslint --fix

Summary:
CI is currently failing because of a lint issue, this fixes it and a bunch of other warnings that are auto-fixable.

**Test plan**
Quick manual test, cosmetic changes only.
Closes https://github.com/facebook/react-native/pull/16229

Differential Revision: D6009748

Pulled By: TheSavior

fbshipit-source-id: cabd44fed99dd90bd0b35626492719c139c89f34

RNTester/js/TextInputExample.android.js

@@ -515,8 +515,7 @@ exports.examples = [
           <TextInput
             defaultValue="Highlight Color is red"
             selectionColor={'red'}
-            style={styles.singleLine}>
-          </TextInput>
+            style={styles.singleLine} />
         </View>
       );
     }
@@ -746,7 +745,7 @@ exports.examples = [
           <SelectionExample
             multiline
             style={styles.multiline}
-            value={"multiline text selection\ncan also be changed"}
+            value={'multiline text selection\ncan also be changed'}
           />
         </View>
       );