Remove unused IncludeToken constructor

This constructor became unused with #356 when we started creating
`IncludeToken` instances at lex-time.

Author: cirras

delphi-frontend/src/main/java/au/com/integradev/delphi/antlr/ast/token/IncludeToken.java

@@ -20,7 +20,6 @@
 
 import org.antlr.runtime.CharStream;
 import org.antlr.runtime.CommonToken;
-import org.antlr.runtime.Token;
 import org.sonar.plugins.communitydelphi.api.token.DelphiToken;
 
 public class IncludeToken extends CommonToken {
@@ -32,11 +31,6 @@ public IncludeToken(
     this.insertionToken = insertionToken;
   }
 
-  public IncludeToken(Token token, DelphiToken insertionToken) {
-    super(token);
-    this.insertionToken = insertionToken;
-  }
-
   public IncludeToken(IncludeToken other) {
     super(other);
     this.insertionToken = other.insertionToken;