Remove BITCOIN_CHAIN from project names.

deployment/project_env.sh

@@ -2,19 +2,16 @@
 
 set -eu
 
+. ./defaults.env
+
 PROJECT_NAME="$(lxc info | grep "project:" | awk '{print $2}')"
 export PROJECT_NAME="$PROJECT_NAME"
 
 if [ "$PROJECT_NAME" = default ]; then
-    echo "ERROR: You are on the default project. Use 'lxc project list' and 'lxc project switch <project>'."
     exit 1
 fi
 
-BITCOIN_CHAIN=$(echo "$PROJECT_NAME" | cut -d'-' -f2)
-
 export PROJECT_PATH="$PROJECTS_PATH/$PROJECT_NAME"
-export BITCOIN_CHAIN="$BITCOIN_CHAIN"
-
 PROJECT_DEFINITION_PATH="$PROJECT_PATH/project.conf"
 
 if [ ! -f "$PROJECT_DEFINITION_PATH" ]; then