removed vision visp

.gitmodules

@@ -19,9 +19,6 @@
 [submodule "src/iiwa_eye_calibration"]
 	path = src/iiwa_eye_calibration
 	url = git@git.rwth-aachen.de:robo_guide/iiwa_eye_calibration.git
-[submodule "src/vision_visp"]
-	path = src/vision_visp
-	url = git@github.com:lagadic/vision_visp.git
 [submodule "src/easy_handeye"]
 	path = src/easy_handeye
 	url = git@github.com:IFL-CAMP/easy_handeye.git

vision_visp @ 971abcf5

-Subproject commit 971abcf56399ef1357fa9cf4e1333d5f8aa1ffff