Revert "Pin end-to-end test Python dependencies" (matrix-org#8106)

* Revert "Fix end-to-end tests (synapse setup) (matrix-org#7420)"

This reverts commit b90a0c4.

* Re-apply the modernized pip install approach

* setuptools2

Author: turt2live

test/end-to-end-tests/element/install-webserver.sh

@@ -10,10 +10,7 @@ cd $BASE_DIR
     source env/bin/activate
 
     pip install --upgrade pip
-
-    # Pin setuptools to work around crash bug in v60
-    # See https://github.com/vector-im/element-web/issues/20287
-    pip install setuptools==v59.8.0
+    pip install --upgrade setuptools
 
     pip install ComplexHttpServer
 

test/end-to-end-tests/synapse/install.sh

@@ -22,17 +22,8 @@ virtualenv -p python3 env
 source env/bin/activate
 
 pip install --upgrade pip
-
-# Pin setuptools to work around crash bug in v60
-# See https://github.com/vector-im/element-web/issues/20287
-pip install setuptools==v59.8.0
-
+pip install --upgrade setuptools
 pip install https://codeload.github.com/matrix-org/synapse/zip/$SYNAPSE_BRANCH
-
-# reivilibre: Suspected bug in frozendict 2.1.2 leading to a core dump...
-# See https://github.com/vector-im/element-web/issues/20287
-pip install frozendict==2.0.2
-
 # apply configuration
 pushd env/bin/
 cp -r $BASE_DIR/config-templates/$CONFIG_TEMPLATE/. ./