Forgot to remove test code before comitting

Deleting method I added to interpolation.py during debugging.

HARK/interpolation.py

@@ -2718,37 +2718,6 @@ def _evaluate(self, x, y):
                         ) + alpha * self.xInterpolators[i](x[c])
         return f
 
-    def _secret(self, x, y):
-        """
-        IT'S A SECRET TO EVERYBODY
-        """
-        if _isscalar(x):
-            y_pos = max(min(np.searchsorted(self.y_list, y), self.y_n - 1), 1)
-            alpha = (y - self.y_list[y_pos - 1]) / (
-                self.y_list[y_pos] - self.y_list[y_pos - 1]
-            )
-            f = (1 - alpha) * self.xInterpolators[y_pos - 1](
-                x
-            ) + alpha * self.xInterpolators[y_pos](x)
-        else:
-            m = len(x)
-            y_pos = np.searchsorted(self.y_list, y)
-            y_pos[y_pos > self.y_n - 1] = self.y_n - 1
-            y_pos[y_pos < 1] = 1
-            f = np.zeros(m) + np.nan
-            if y.size > 0:
-                for i in range(1, self.y_n):
-                    c = y_pos == i
-                    if np.any(c):
-                        alpha = (y[c] - self.y_list[i - 1]) / (
-                            self.y_list[i] - self.y_list[i - 1]
-                        )
-                        # f[c] = i
-                        f[c] = self.xInterpolators[i](x[c])
-                        # f[c] = self.xInterpolators[i - 1](x[c])
-                        # f[c] = self.xInterpolators[i](x[c]) - self.xInterpolators[i - 1](x[c])
-        return f
-
     def _derX(self, x, y):
         """
         Returns the derivative with respect to x of the interpolated function