📝 Remove duplicated line in environment-variables.md (#1277)

* Update environment-variables.md

Removed a duplicate line (244) in the typer/docs/environment-variables.md

* restore windows line

* remove duplicate Linux line

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Co-authored-by: svlandeg <svlandeg@github.com>

Author: neirzhei

docs/environment-variables.md

@@ -245,8 +245,6 @@ This way, when you type `python` in the terminal, the system will find the Pytho
 
 ////
 
-This way, when you type `python` in the terminal, the system will find the Python program in `/opt/custompython/bin` (the last directory) and use that one.
-
 So, if you type:
 
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