RFE on one of my H4 extension

I have been applied for two H4 extensions(In a gap of 2 months) due to change of my husband’s job and he got valid visa for 3 years within 15 days of premium processing. Now I got RFE on 1st extension saying that my bio-metrics fails.

  1. Is there any chance to withdrawal my 1st extension because we no longer needed that.
  2. Do I need to address my RFE before withdrawal my extension.

Thanks in Advance