Do not export or document the magrittr pipe

We use it in the package, but we don't have to export it. Users can
import magrittr or dplyr if they want it, and then it's at least more
explicit where it came from.

Author: capnrefsmmat

NAMESPACE

@@ -7,7 +7,6 @@ S3method(print,covidcast_data_signal_list)
 S3method(print,covidcast_data_source)
 S3method(print,covidcast_epidata)
 S3method(print,epidata_call)
-export("%>%")
 export(avail_endpoints)
 export(cache_info)
 export(clear_cache)

R/utils-pipe.R

@@ -1,14 +1,2 @@
-#' Pipe operator
-#'
-#' See \code{magrittr::\link[magrittr:pipe]{\%>\%}} for details.
-#'
-#' @name %>%
-#' @rdname pipe
-#' @keywords internal
-#' @export
 #' @importFrom magrittr %>%
-#' @usage lhs \%>\% rhs
-#' @param lhs A value or the magrittr placeholder.
-#' @param rhs A function call using the magrittr semantics.
-#' @return The result of calling `rhs(lhs)`.
 NULL