Remove seuratdata as a dependency to fix github actions

Author: agdenadel

DESCRIPTION

@@ -13,8 +13,6 @@ Description: callback (Calibrated Clustering via Knockoffs) is a method for prot
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.3.1
-Remotes:
-    satijalab/seurat-data
 Imports: 
     Matrix,
     Seurat (>= 5.0.1),
@@ -27,6 +25,5 @@ Imports:
 License: MIT + file LICENSE
 Suggests: 
     knitr,
-    rmarkdown,
-    SeuratData
+    rmarkdown
 VignetteBuilder: knitr