Removing null checks as suggested by editor for BAEL-3083

Author: cscib

core-java-modules/core-java-collections-list-2/src/main/java/com/baeldung/findastring/FindAStringInGivenList.java

@@ -17,7 +17,7 @@ public List<String> findUsingLoopWithRegex(String search, List<String> list) {
 
         List<String> matches = new ArrayList<String>();
 
-        String pattern = ".*\\b"+search+"\\b.*";
+        String pattern = ".*"+search+".*";
         Pattern p = Pattern.compile(pattern);
 
         for(String str: list) {