cleanup - unnecessary semicolons, static keyword

h2/src/main/org/h2/engine/Mode.java

@@ -44,7 +44,7 @@ public class Mode {
          * Multiple rows with identical values in indexed columns are not allowed in
          * unique index.
          */
-        FORBID_ANY_DUPLICATES;
+        FORBID_ANY_DUPLICATES
     }
 
     private static final HashMap<String, Mode> MODES = new HashMap<>();

h2/src/main/org/h2/store/FileLockMethod.java

@@ -31,5 +31,5 @@ public enum FileLockMethod {
     /**
      * Use the file system to lock the file; don't use a separate lock file.
      */
-    FS;
+    FS
 }

h2/src/main/org/h2/util/ToChar.java

@@ -975,7 +975,7 @@ public class ToChar {
     }
 
     /** Represents a capitalization / casing strategy. */
-    static public enum Capitalization {
+    public enum Capitalization {
 
         /**
          * All letters are uppercased.

h2/src/main/org/h2/util/ToDateTokenizer.java

@@ -542,7 +542,7 @@ class ToDateTokenizer {
     /**
      * The format tokens.
      */
-    public static enum FormatTokenEnum {
+    public enum FormatTokenEnum {
         // 4-digit year
         YYYY(PARSLET_YEAR),
         // 4-digit year with sign (- = B.C.)

h2/src/main/org/h2/value/ValueEnum.java

@@ -10,7 +10,7 @@ import org.h2.api.ErrorCode;
 import org.h2.message.DbException;
 
 public class ValueEnum extends ValueEnumBase {
-    private static enum Validation {
+    private enum Validation {
         DUPLICATE,
         EMPTY,
         INVALID,