Remove the requirements.txt and usages

Author: ArtyomVancyan

README.md

@@ -68,7 +68,7 @@ Run the following command in the package's root directory to install it in edita
 python3 -m pip install -e .
 ```
 This command will install the package in your local environment and allow you to make changes to the code and see the
-updates immediately. It will also install all the required dependencies listed in the [requirements.txt](requirements.txt) file.
+updates immediately. It will also install all the required dependencies.
 
 ## Contribute
 

requirements.txt

@@ -12,5 +12,5 @@ setenv =
 deps =
     -r{toxinidir}/tests/requirements.txt
 commands =
-    pip install -r requirements.txt
+    pip install -e .
     pytest --basetemp={envtmpdir}