Remove pydl in release

Author: albireox

.github/workflows/release.yml

@@ -61,7 +61,7 @@ jobs:
           conda create --name STUI --file BuildForMac/environment.txt
           conda activate STUI
           pip install numpy==1.10.1
-          pip install py2app==0.22 matplotlib==2.2.5 pyfits==3.5 pyds9==1.8.1 twisted==20.3.0 pygame==1.9.6
+          pip install py2app==0.22 matplotlib==2.2.5 pyfits==3.5 twisted==20.3.0 pygame==1.9.6
         shell: bash -l {0}
 
       - name: Build Imaging