Revert Ctrl+Alt resizing/moving changes.

This removes the solution with no convincing replacement,
and breaks most basic window management tasks such as raising a window when clicking it.

Please come back when you get the issues fixed and a real alternative to the "ugly" border highlighting.

This reverts hrev45197-45202.

src/servers/app/decorator/DefaultDecorator.cpp

@@ -218,33 +218,7 @@ DefaultDecorator::RegionAt(BPoint where, int32& tab) const
 	if (region != REGION_NONE)
 		return region;
 
-	// check the left top corner
-	BRect leftTopLeft(fLeftBorder.left, fLeftBorder.top,
-		fLeftBorder.right, fLeftBorder.top + kBorderResizeLength);
-	BRect leftTopTop(fTopBorder.left, fTopBorder.top,
-		fTopBorder.left + kBorderResizeLength, fTopBorder.bottom);
-	if (leftTopLeft.Contains(where) || leftTopTop.Contains(where))
-		return REGION_LEFT_TOP_CORNER;
-
-	// check the left bottom corner
-	BRect leftBottomLeft(fLeftBorder.left,
-		fLeftBorder.bottom - kBorderResizeLength,
-		fLeftBorder.right, fLeftBorder.bottom);
-	BRect leftBottomBottom(fBottomBorder.left,
-		fBottomBorder.top, fBottomBorder.left + kBorderResizeLength,
-		fBottomBorder.bottom);
-	if (leftBottomLeft.Contains(where) || leftBottomBottom.Contains(where))
-		return REGION_LEFT_BOTTOM_CORNER;
-
-	// check the right top corner
-	BRect rightTopRight(fRightBorder.left, fRightBorder.top,
-		fRightBorder.right, fRightBorder.top + kBorderResizeLength);
-	BRect rightTopTop(fTopBorder.right - kBorderResizeLength, fTopBorder.top,
-		fTopBorder.right, fTopBorder.bottom);
-	if (rightTopRight.Contains(where) || rightTopTop.Contains(where))
-		return REGION_RIGHT_TOP_CORNER;
-
-	// check the right bottom resize corner
+	// check the resize corner
 	if (fTopTab->look == B_DOCUMENT_WINDOW_LOOK && fResizeRect.Contains(where))
 		return REGION_RIGHT_BOTTOM_CORNER;