8322772: Clean up code after JDK-8322417

Reviewed-by: mbaesken
Backport-of: 32d80e2caf6063b58128bd5f3dc87b276f3bd0cb

Author: RealCLanger

src/java.base/share/classes/jdk/internal/io/JdkConsoleImpl.java

@@ -120,7 +120,7 @@ public char[] readPassword(String fmt, Object ... args) {
                             ioe.addSuppressed(x);
                     }
                     if (ioe != null) {
-                        java.util.Arrays.fill(passwd, ' ');
+                        Arrays.fill(passwd, ' ');
                         try {
                             if (reader instanceof LineReader lr) {
                                 lr.zeroOut();