cpufreq/amd-pstate: Remove the cppc_state check in offline/online functions

Only amd_pstate_epp driver (i.e. cppc_state = ACTIVE) enters the
amd_pstate_epp_offline() and amd_pstate_epp_cpu_online() functions,
so remove the unnecessary if condition checking if cppc_state is
equal to AMD_PSTATE_ACTIVE.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20241204144842.164178-5-Dhananjay.Ugwekar@amd.com


Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>