remove unused code
remove unused code

cneira/cocotron,JackLian/cocotron,crystax/android-vendor-cocotron,ruppmatt/cocotron,yuhangwang/cocotron,cjwl/cocotron,yuhangwang/cocotron,Suninus/cocotron,crystax/android-vendor-cocotron,JackLian/cocotron,guestOS/guestOS,cjwl/cocotron,cyclaero/cocotron,crystax/android-vendor-cocotron,ruppmatt/cocotron,gemu2015/cocotron-sierra,gemu2015/cocotron-sierra,Suninus/cocotron,crystax/android-vendor-cocotron,guestOS/guestOS,ruppmatt/cocotron,cneira/cocotron,guestOS/guestOS,yuhangwang/cocotron,cyclaero/cocotron,cjwl/cocotron,JackLian/cocotron,cyclaero/cocotron,Suninus/cocotron,cneira/cocotron,cneira/cocotron,JackLian/cocotron,cyclaero/cocotron,gemu2015/cocotron-sierra,ruppmatt/cocotron,yuhangwang/cocotron,guestOS/guestOS,cjwl/cocotron,gemu2015/cocotron-sierra,Suninus/cocotron