remove unused dependency

Signed-off-by: Fionn O'Donohoe <fionno@xilinx.com>

requirements.txt

 bitstring==3.1.7
 clize==4.1.1
 dataclasses-json==0.5.7
-docrep==0.2.7
 gspread==3.6.0
 numpy==1.22.0
 onnx==1.13.0