add default hint position + remove unused functions

Author: afshinm

example/programmatic/hint.html

@@ -99,10 +99,6 @@ <h4>Section Six</h4>
               console.log('hint clicked', hintElement, item, stepId);
           });
 
-          intro.onhintremove(function (stepId) {
-              console.log('hint removed', stepId);
-          });
-
           intro.onhintclose(function (stepId) {
               console.log('hint closed', stepId);
           });

intro.js

@@ -68,7 +68,7 @@
       /* Disable an interaction with element? */
       disableInteraction: false,
       /* Default hint position */
-      hintPosition: 'top',
+      hintPosition: 'top-middle',
       /* Hint button label */
       hintButtonLabel: 'Got it'
     };
@@ -1218,6 +1218,8 @@
           currentItem.element = document.querySelector(currentItem.element);
         }
 
+        currentItem.hintPosition = currentItem.hintPosition || 'top-middle';
+
         if (currentItem.element != null) {
           this._introItems.push(currentItem);
         }
@@ -1269,26 +1271,6 @@
     }
   }
 
-  /**
-   * Remove single hint from the page
-   *
-   * @api private
-   * @method _removeHint
-   */
-  function _removeHint(stepId) {
-    _removeHintTooltip.call(this);
-    var hint = this._targetElement.querySelector('.introjs-hint[data-step="' + stepId + '"]');
-
-    if (hint) {
-      hint.parentNode.removeChild(hint);
-    }
-
-    // call the callback function (if any)
-    if (typeof (this._hintRemoveCallback) !== 'undefined') {
-      this._hintRemoveCallback.call(this, stepId);
-    }
-  };
-
   /**
    * Hide a hint
    *
@@ -1309,20 +1291,6 @@
     }
   };
 
-  /**
-   * Remove all hints from the page
-   *
-   * @api private
-   * @method _removeHints
-   */
-  function _removeHints() {
-    var hints = this._targetElement.querySelectorAll('.introjs-hint');
-
-    for (var i = 0, l = hints.length; i < l; i++) {
-      _removeHint.call(this, hints[i].getAttribute('data-step'));
-    }
-  };
-
   /**
    * Add all available hints to the page
    *
@@ -1698,14 +1666,6 @@
       }
       return this;
     },
-    onhintremove: function(providedCallback) {
-      if (typeof (providedCallback) === 'function') {
-        this._hintRemoveCallback = providedCallback;
-      } else {
-        throw new Error('Provided callback for onhintremove was not a function.');
-      }
-      return this;
-    },
     onexit: function(providedCallback) {
       if (typeof (providedCallback) === 'function') {
         this._introExitCallback = providedCallback;