remove scene box that should not be in the renderer

Change-Id: I3ec69042782aaac2fa2b583dd5a667b91dcdbb88
remove unused methods

Change-Id: Id9e35e171d4235d863a09f6d1d8083d7dbab59c6
remove unused pickingFlg

Change-Id: I27b4559a5d2f4a003d31be9cce4d74dfb7b5326c
remove unimplemented methods from class

Change-Id: Ib050c0c0c699964cad91b184fcc4b3387b171235
remove unneccessary flag

Change-Id: I88c7abe0fa428ea6d9b396e77b510088eda09289
remove unused variable

Change-Id: Ic6455f080fae211d7919d9f6ea35cdbda3ca3757
no need to call clear before destryozing a vector

Change-Id: Ic5013c100520e8949d687ce6b34b83405bdfaf0a