Remove warnings about missing ChEMBL/ChEBI IDs.

R/Compound.R

@@ -45,7 +45,8 @@ Compound <- R6Class(
       }
       if(is.na(name)) { stop("Name required to create Compound object") }
       if(is.na(ChEMBL_ID) && is.na(ChEBI_ID)) { 
-        warning("Consider setting one of ChEMBL_ID or ChEBI_ID crossreference for new Compound object")
+        # Too noisy
+        # warning("Consider setting one of ChEMBL_ID or ChEBI_ID crossreference for new Compound object")
       }
       self$dbConnection <- dbConnection
       if(is.na(ID)) {