Removed some unnecessary Suggests deps

These related to the code in the dev/ dir.

Author: multimeric

DESCRIPTION

@@ -93,20 +93,10 @@ Imports:
     duckdb,
     stringr
 Suggests:
-    here,
-    tidyseurat,
     zellkonverter,
-    scMerge,
-    DelayedArray,
-    openssl,
-    cellxgenedp,
-    celldex,
-    SingleR,
     rmarkdown,
     knitr,
     testthat,
-    tidySingleCellExperiment,
-    ggplot2,
     basilisk,
     arrow,
     reticulate