[v2][_commonspeckle][chx_correlation] 1t-from-2t is broken

[ambarb]

Note here to remember that this is broken but fixed and enhanced in scikit-beam + better testing. https://github.com/scikit-beam/scikit-beam/pull/566 https://github.com/scikit-beam/scikit-beam/pull/571

However, equivalent (and with more options) exists already in

• pyCHX.Two_Time_Correlation_Functions.get_one_time_from_two_time
• pyCHX.Two_Time_Correlation_Functions.get_one_time_from_two_time_old

We need to just consider adding error bar functionality as done by @tankonst https://github.com/scikit-beam/scikit-beam/pull/571

any objections to error bars? discussion on returned data format?

[ambarb]

probably deleted the function that is copied into skbeam.

@tankonst approach to error bars in skbeam should be added to pyCHX.Two_Time_Correlation_Functions.get_one_time_from_two_time

we will delete pyCHX.Two_Time_Correlation_Functions.get_one_time_from_two_time_old

[ambarb]

@ambarb delete and get tests @tankonst error bars