client: Remove isr_ and isr_priv_ prefixes from old HTTPSSH functions
client: Remove isr_ and isr_priv_ prefixes from old HTTPSSH functions

- Rename the remaining HTTPSSH functions to remove the "isr_" or
"isr_priv_" prefix

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr