removed import of huge SNPLOCS package

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: trena
 Type: Package
 Title: Fit transcriptional regulatory networks using gene expression, priors, machine learning
-Version: 1.5.2
+Version: 1.5.4
 Date: 2018-11-26
 Author: Seth Ament <seth.ament@systemsbiology.org>, Paul Shannon <pshannon@systemsbioloyg.org>, Matthew Richards <mrichard@systemsbiology.org>
 Maintainer: Paul Shannon <paul.thurmond.shannon@gmail.com>
@@ -20,7 +20,6 @@ Imports:
     BSgenome.Hsapiens.UCSC.hg38,
     BSgenome.Hsapiens.UCSC.hg19,
     BSgenome.Mmusculus.UCSC.mm10,
-    SNPlocs.Hsapiens.dbSNP150.GRCh38,
     org.Hs.eg.db,
     Biostrings,
     GenomicRanges,
@@ -36,8 +35,7 @@ Suggests:
     plyr,
     knitr,
     BiocGenerics,
-    rmarkdown,
-    RMariaDB
+    rmarkdown
 VignetteBuilder:
     knitr
 Description: Methods for reconstructing transcriptional regulatory networks, especially in species