Revert "fixing Java test and sample after moving drawContours() from Imgproc to Core"

This reverts commit eb4ce67d.

Conflicts:
	samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java

modules/java/android_test/src/org/opencv/test/imgproc/ImgprocTest.java

@@ -678,7 +678,7 @@ public class ImgprocTest extends OpenCVTestCase {
         List<MatOfPoint> contours = new ArrayList<MatOfPoint>();
         Imgproc.findContours(gray0, contours, new Mat(), Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE);
 
-        Core.drawContours(gray0, contours, -1, new Scalar(0));
+        Imgproc.drawContours(gray0, contours, -1, new Scalar(0));
 
         assertEquals(0, Core.countNonZero(gray0));
     }
@@ -688,7 +688,7 @@ public class ImgprocTest extends OpenCVTestCase {
         List<MatOfPoint> contours = new ArrayList<MatOfPoint>();
         Imgproc.findContours(gray0, contours, new Mat(), Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE);
 
-        Core.drawContours(gray0, contours, -1, new Scalar(0), Core.FILLED);
+        Imgproc.drawContours(gray0, contours, -1, new Scalar(0), Core.FILLED);
 
         assertEquals(0, Core.countNonZero(gray0));
     }

samples/android/color-blob-detection/src/org/opencv/samples/colorblobdetect/ColorBlobDetectionView.java

@@ -116,7 +116,7 @@ public class ColorBlobDetectionView extends SampleCvViewBase implements OnTouchL
             mDetector.process(mRgba);
             List<MatOfPoint> contours = mDetector.getContours();
             Log.e(TAG, "Contours count: " + contours.size());
-            Core.drawContours(mRgba, contours, -1, CONTOUR_COLOR);
+            Imgproc.drawContours(mRgba, contours, -1, CONTOUR_COLOR);
 
             Mat colorLabel = mRgba.submat(2, 34, 2, 34);
             colorLabel.setTo(mBlobColorRgba);