Remove the NumberInterface::intPow method.

src/main/java/org/nwapw/abacus/number/NumberInterface.java

@@ -134,27 +134,6 @@ public abstract class NumberInterface {
         return negateInternal();
     }
 
-    /**
-     * Raises this number to an integer power.
-     *
-     * @param exponent the exponent to which to take the number.
-     * @return the resulting value.
-     */
-    protected abstract NumberInterface intPowInternal(int exponent);
-
-    /**
-     * Raises this number to an integer power. Also, checks if the
-     * thread has been interrupted, and if so, throws
-     * an exception.
-     *
-     * @param exponent the exponent to which to take the number.
-     * @return the resulting value.
-     */
-    public final NumberInterface intPow(int exponent){
-        checkInterrupted();
-        return intPowInternal(exponent);
-    }
-
     /**
      * Compares this number to another.
      *