Revert "return origin avatar for drawing"

This reverts commit 0fb13481caa8b15b40b9595c23a6edb505d12e57.
Revert "clean up"

This reverts commit d3f5b72f1b9bb2bf6a236bb72deb93098558a7ea.
Revert "load avatar by size, default use builtin size"

This reverts commit 936d38e22e13190efafcb63df5c0dbf3e5ccac5d.
load default avatar