Remove previous_release.sh

Author: bliotti

ci/test/05_before_script.sh

@@ -48,6 +48,6 @@ if [ -z "$NO_DEPENDS" ]; then
 fi
 if [ -n "$PREVIOUS_RELEASES_TO_DOWNLOAD" ]; then
   BEGIN_FOLD previous-versions
-  DOCKER_EXEC contrib/devtools/previous_release.sh -b -t "$PREVIOUS_RELEASES_DIR" "${PREVIOUS_RELEASES_TO_DOWNLOAD}"
+  DOCKER_EXEC contrib/devtools/previous_release.py -b -t "$PREVIOUS_RELEASES_DIR" "${PREVIOUS_RELEASES_TO_DOWNLOAD}"
   END_FOLD
 fi

contrib/devtools/previous_release.sh

@@ -6,7 +6,7 @@
 
 Test various backwards compatibility scenarios. Download the previous node binaries:
 
-contrib/devtools/previous_release.sh -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
+contrib/devtools/previous_release.py -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
 
 v0.15.2 is not required by this test, but it is used in wallet_upgradewallet.py.
 Due to a hardfork in regtest, it can't be used to sync nodes.

test/functional/feature_backwards_compatibility.py

@@ -8,7 +8,7 @@
 In case we need to break mempool compatibility we can continue to use the test by just bumping the version number.
 
 Download node binaries:
-contrib/devtools/previous_release.sh -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
+contrib/devtools/previous_release.py -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
 
 Only v0.15.2 is required by this test. The rest is used in other backwards compatibility tests.
 """

test/functional/mempool_compatibility.py

@@ -6,7 +6,7 @@
 
 Test upgradewallet RPC. Download node binaries:
 
-contrib/devtools/previous_release.sh -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
+contrib/devtools/previous_release.py -b v0.19.1 v0.18.1 v0.17.1 v0.16.3 v0.15.2
 
 Only v0.15.2 and v0.16.3 are required by this test. The others are used in feature_backwards_compatibility.py
 """