copy the rasters to the intended new folder, then:
Just be careful what folder you select..
import os
folder = r'put_the_path_to_folder_here'
text_to_replace = "AnalyticMS_SR_clip"
for root, dirs, files in os.walk(folder):
for filename in files:
new_name = filename.replace(text_to_replace,"")
original_filepath = os.path.join(root, filename)
new_filepath = os.path.join(root, new_name)
os.rename(original_filepath, new_filepath)