fix pmd

Signed-off-by: Kavindu Dodanduwa <[email protected]>

Author: Kavindu-Dodan

providers/flagd/src/main/java/dev/openfeature/contrib/providers/flagd/resolver/process/model/FlagParser.java

@@ -13,7 +13,6 @@
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.nio.charset.Charset;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;