Remove altExps for the citesseq data

fixing issue with Seurat

code/prep-citeseq.R

@@ -25,6 +25,10 @@ dec_citeseq <- modelGeneVarByPoisson(citeseq)
 top_citeseq <- getTopHVGs(dec_citeseq, n = 2000)
 citeseq <- citeseq[top_citeseq, ]
 
+# Remove the alternate experiment which causes problems when the Seurat methods
+# are used.
+altExp(citeseq, "ADT") <- NULL
+
 # All cluster labels (not annotated).
 colLabels(citeseq) <- factor(citeseq$RNA_snn_res.0.2)