update requirements.txt

requirements.txt

@@ -1,30 +1,4 @@
-backcall==0.2.0
-beautifulsoup4==4.9.3
-bs4==0.0.1
-certifi==2020.12.5
-chardet==4.0.0
-csv23==0.3.2
-decorator==4.4.2
-idna==2.10
-ipdb==0.13.7
-ipython==7.21.0
-ipython-genutils==0.2.0
-jedi==0.18.0
-lxml==4.6.2
-numpy==1.20.1
-pandas==1.2.3
-parso==0.8.1
-pexpect==4.8.0
-pickleshare==0.7.5
-prompt-toolkit==3.0.17
-ptyprocess==0.7.0
-Pygments==2.8.1
-python-dateutil==2.8.1
-pytz==2021.1
 requests==2.25.1
-six==1.15.0
-soupsieve==2.2
-toml==0.10.2
-traitlets==5.0.5
-urllib3==1.26.4
-wcwidth==0.2.5
+bs4==0.0.1
+lxml==4.6.3
+