Drop python 3.7 (and 2.7) for recipes under dev-python/

Recipes with only 3.7 are left alone. Help with #8025.

dev-python/html2text/html2text-2020.1.16.recipe

@@ -8,7 +8,7 @@ HOMEPAGE="https://github.com/html2text/html2text.py
 	https://pypi.python.org/pypi/html2text"
 COPYRIGHT="2004-2008 Aaron Swartz"
 LICENSE="GNU GPL v3"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://github.com/Alir3z4/html2text/archive/$portVersion.tar.gz"
 CHECKSUM_SHA256="209a2c4d7897e83a6999160ef51ae71bdb8c3eede99e103f12edb25199d4d11e"
 
@@ -25,8 +25,8 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python3 python38 python39)
-PYTHON_VERSIONS=(3.7 3.8 3.9)
+PYTHON_PACKAGES=(python38 python39)
+PYTHON_VERSIONS=(3.8 3.9)
 for i in "${!PYTHON_PACKAGES[@]}"; do
 pythonPackage=${PYTHON_PACKAGES[i]}
 pythonVersion=${PYTHON_VERSIONS[$i]}
@@ -43,9 +43,6 @@ BUILD_PREREQUIRES="$BUILD_PREREQUIRES
 	cmd:python$pythonVersion"
 done
 
-PROVIDES_python3="$PROVIDES_python3
-	cmd:html2text3.7
-	"
 PROVIDES_python38="$PROVIDES_python38
 	cmd:html2text3.8
 	"