Minimal code cleanup in ivas_smc_gmm_fx()

Basic info

ivas_smc_gmm_fx(), step [14] ps_sta (spectral stationarity) is a for loop which contains an unnecessay IF condition.

• Float reference:
  • Encoder (float):
  • Decoder (float):
• Fixed point:
  • Encoder (fixed):
  • Decoder (fixed):

Bug description

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-xxxx