removed ROI code (moved to its own repo)

Author: tsmbland

environment.yml

@@ -14,4 +14,5 @@ dependencies:
   - pip
   - pip:
       - saibr==0.1.1
-      - opencv-python==4.2.0.34
+      - opencv-python==4.2.0.34
+      - matplotlib-polyroi==0.1.1

saibr/__init__.py

@@ -1,4 +1,3 @@
 from .saibr import *
 from .misc import *
-from .roi import *
 from .legacy import *