don't call Pkg.update in build

Author: shashi

deps/build.jl

@@ -32,14 +32,7 @@ end
 
 if isa(Pkg.installed("IJulia"), VersionNumber)
     if Pkg.installed("IJulia") < v"1.3.3"
-        info("This version of Interact requires IJulia version >= v1.3.3.")
-        info("Attempting to update IJulia now.")
-        try
-            Pkg.update("IJulia")
-        catch err
-            # ask for help on 0.4
-            warn("Failed to update IJulia. Run Pkg.update(\"IJulia\") manually.")
-        end
+        warn("This version of Interact requires IJulia version >= v1.3.3. Run Pkg.update(\"IJulia\") to get it.")
     end
     using IJulia
     main()