libcamera: ipa_manager: Fix build path comments

The comments describe functionality before libcameraBuildPath() was
adapted from libcameraPath() to return the root of the build, and
described having to take a relative path.

This is no longer the case, and the comment is inaccurate. Fix it.

Fixes: 1b8ac8473c ("libcamera: utils: Adapt libcameraPath to match use cases")
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/ipa_manager.cpp

@@ -114,10 +114,7 @@ IPAManager::IPAManager()
 
 	/*
 	 * When libcamera is used before it is installed, load IPAs from the
-	 * same build directory as the libcamera library itself. This requires
-	 * identifying the path of the libcamera.so, and referencing a relative
-	 * path for the IPA from that point. We need to recurse one level of
-	 * sub-directories to match the build tree.
+	 * same build directory as the libcamera library itself.
 	 */
 	std::string root = utils::libcameraBuildPath();
 	if (!root.empty()) {