CologneBuffer does not need to implement CharSequence which then does not need to implement charAt and subSequence, which are themselves not used.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1063389 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/java/org/apache/commons/codec/language/ColognePhonetic.java

@@ -197,8 +197,6 @@ public CologneBuffer(int buffSize) {
 
         protected abstract char[] copyData(int start, final int length);
 
-        protected abstract CologneBuffer createCologneBuffer(char[] data);
-
         public int length() {
             return length;
         }
@@ -224,10 +222,6 @@ protected char[] copyData(int start, final int length) {
             return retData;
         }
 
-        protected CologneBuffer createCologneBuffer(char[] data) {
-            return new CologneLeftBuffer(data);
-        }
-
         public void putRight(char chr) {
             data[length] = chr;
             length++;
@@ -246,10 +240,6 @@ protected char[] copyData(int start, final int length) {
             return newData;
         }
 
-        protected CologneBuffer createCologneBuffer(char[] data) {
-            return new CologneRightBuffer(data);
-        }
-
         public char dropNext() {
             char ch = data[data.length - length];
             length--;