ANSPB-423 Remove dependency surplus.

Author: Waldemar Bartikowski

requirements.txt

@@ -1,15 +1,4 @@
-astroid==1.6.6 ; python_version < '3'
-astroid==2.4.1 ; python_version >= '3'
-isort==4.3.21
-lazy-object-proxy==1.4.3
-logilab-common==1.4.4 ; python_version < '3'
-logilab-common==1.6.1 ; python_version >= '3'
-mccabe==0.6.1
 nose==1.3.7
 pycodestyle==2.6.0
 pylint==1.9.5 ; python_version < '3'
 pylint==2.5.2 ; python_version >= '3'
-six==1.15.0
-toml==0.10.1
-typed-ast==1.4.1 ; python_version >= '3'
-wrapt==1.12.1