fix(build): cleanup unused import

Author: fhussonnois

connect-file-pulse-api/src/main/java/io/streamthoughts/kafka/connect/filepulse/source/internal/ConnectSchemaMapper.java

@@ -39,7 +39,6 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Map;
-import java.util.function.Predicate;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;