Delete unused constructors and assignment operators am: 163ea9e5d2

Original change: https://android-review.googlesource.com/c/device/generic/goldfish-opengl/+/2429116

Change-Id: I80839eb04e6e6414a6d9ce878561ee5217834b91
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>