Remove unused fields and fields which can be local variables

Author: mrotteveel

src/main/java/org/firebirdsql/decimal/DecimalFormat.java

@@ -50,8 +50,6 @@ enum DecimalFormat {
     final int exponentContinuationBits;
     final int coefficientContinuationBits;
     final int eLimit;
-    private final int eMax;
-    private final int eMin;
     private final int exponentBias;
     private final BigInteger maxCoefficient;
     private final BigInteger minCoefficient;
@@ -66,8 +64,8 @@ enum DecimalFormat {
         coefficientContinuationBits = calculateCoefficientContinuationBits(coefficientDigits);
         exponentContinuationBits = calculateExponentContinuationBits(formatBitLength, coefficientContinuationBits);
         eLimit = calculateExponentLimit(exponentContinuationBits);
-        eMin = -eLimit / 2;
-        eMax = -eMin + 1;
+        int eMin = -eLimit / 2;
+        //int eMax = -eMin + 1;
         exponentBias = -eMin + coefficientDigits - 1;
         char[] digits = new char[coefficientDigits];
         Arrays.fill(digits, '9');