remove aws-auth requirement

Author: matin

setup.py

@@ -23,7 +23,6 @@
     package_data=dict(cuenca=['py.typed']),
     python_requires='>=3.6',
     install_requires=[
-        'aws-requests-auth==0.4.3',
         'requests>=2.24,<2.26',
         'cuenca-validations>=0.7.0,<0.8.0',
         'dataclasses>=0.7;python_version<"3.7"',