Remove deprecated checkRewrite() function

Change-Id: I7c9abbe37ac56b7c35966406777bda21f7c2c3dc
diff --git a/dev/js/spec/vcSpec.js b/dev/js/spec/vcSpec.js
index 87442bd..b60dc5d 100644
--- a/dev/js/spec/vcSpec.js
+++ b/dev/js/spec/vcSpec.js
@@ -2372,56 +2372,6 @@
     });
   });
 
-  // Check class method
-  xdescribe('KorAP.VC.checkRewrite', function () {
-
-    // Class method is deprecated!
-    
-    it('should check for simple rewrites', function () {
-      expect(vcClass.checkRewrite(
-        {
-          "@type" : "koral:doc",
-          "rewrites" : [{
-            "@type" : "koral:rewrite",
-            "operation" : "operation:modification",
-            "src" : "querySerializer",
-            "scope" : "tree"
-          }]
-        }
-      )).toBeTruthy();
-
-      var nested = {
-        "@type" : "koral:docGroup",
-        "operands" : [
-          {
-            "@type" : "koral:doc"
-          },
-          {
-            "@type" : "koral:docGroup",
-            "operands" : [
-              {
-                "@type": "koral:doc"
-              },
-              {
-                "@type": "koral:doc"
-              }
-            ]
-          }
-        ]
-      };
-
-      expect(vcClass.checkRewrite(nested)).toBe(false);
-
-      nested["operands"][1]["operands"][1]["rewrites"] = [{
-        "@type" : "koral:rewrite",
-        "operation" : "operation:modification",
-        "src" : "querySerializer",
-        "scope" : "tree"
-      }];
-
-      expect(vcClass.checkRewrite(nested)).toBeTruthy();
-    });
-  });
 
   describe('KorAP.Rewrite', function () {
     it('should be initializable', function () {
diff --git a/dev/js/src/vc.js b/dev/js/src/vc.js
index 3259083..985b64b 100644
--- a/dev/js/src/vc.js
+++ b/dev/js/src/vc.js
@@ -236,33 +236,8 @@
 
       return false;
     },
+
     
-    // Check if the virtual corpus contains a rewrite
-    // This is a class method
-    checkRewrite : function(json) {
-
-      // There is a rewrite attribute
-      if (json['rewrites'] !== undefined) {
-        return true;
-      }
-
-      // There is a group to check for rewrites
-      else if (json['@type'] === 'koral:docGroup') {
-        var ops = json['operands'];
-        if (ops === undefined)
-          return false;
-
-        for ( var i in ops) {
-
-          // "this" is the class
-          if (this.checkRewrite(ops[i])) {
-            return true;
-          };
-        };
-      };
-      return false;
-    },
-
     /**
      * Clean the virtual document to uspecified doc.
      */