Remove generate_dsym argument (#2600)

It's not necessary if you use `build = FALSE` and generating these files
gets in the way since they are not ignored by default.

Author: lionel-

NEWS.md

@@ -1,7 +1,5 @@
 # devtools (development version)
 
-* On macOS, `install()` now generates `dSYM` sidecar files for native libraries by default.
-
 * Functions that use httr now explicitly check that it is installed
   (@catalamarti, #2573).
 

R/install.R

@@ -26,6 +26,13 @@
 #'   binary artefacts (like \file{.o}, `.so`) from appearing in your local
 #'   package directory, but is considerably slower, because every compile has
 #'   to start from scratch.
+#'
+#'   One downside of installing from a built tarball is that the package is
+#'   installed from a temporary location. This means that any source references,
+#'   at R level or C/C++ level, will point to dangling locations. The debuggers
+#'   will not be able to find the sources for step-debugging. If you're
+#'   installing the package for development, consider setting `build` to
+#'   `FALSE`.
 #' @param args An optional character vector of additional command line
 #'   arguments to be passed to `R CMD INSTALL`. This defaults to the
 #'   value of the option `"devtools.install.args"`.
@@ -36,27 +43,6 @@
 #' @param keep_source If `TRUE` will keep the srcrefs from an installed
 #'   package. This is useful for debugging (especially inside of RStudio).
 #'   It defaults to the option `"keep.source.pkgs"`.
-#' @param generate_dsym (macOS only) If `TRUE`, and if the package includes a
-#'   native library (a `.so` file), a `dSYM` sidecar file is generated and
-#'   installed alongside the library. This file contains source and line
-#'   information that allows a debugger to step through original sources.
-#'
-#'   Note that when `build` is set to `TRUE`, `install()` operates from a
-#'   temporary directory which causes the source paths to point to dangling
-#'   locations. You will need to remap these paths to the actual sources on your
-#'   disk, e.g. with lldb:
-#'
-#'   ```
-#'   # Get information about the dangling temporary path for a function in your
-#'   # library
-#'   image lookup -vn my_function
-#'
-#'   # Remap the dangling location to the actual package path
-#'   settings set target.source-map /private/tmp/Rtmpnl5XgE/R.INSTALLe5133dcc3211/mypackage /path/to/mypackage
-#'   ```
-#'
-#'   To avoid this, set `build` to `FALSE` to install directly from the source
-#'   location instead of a "built" package tarball.
 #' @param ... additional arguments passed to [remotes::install_deps()]
 #'   when installing dependencies.
 #' @family package installation
@@ -71,7 +57,6 @@ install <-
              build_vignettes = FALSE,
              keep_source = getOption("keep.source.pkgs"),
              force = FALSE,
-             generate_dsym = TRUE,
              ...) {
     pkg <- as.package(pkg)
 
@@ -92,7 +77,6 @@ install <-
 
     opts <- c(
       if (keep_source) "--with-keep.source",
-      if (is_macos && generate_dsym) "--dsym",
       "--install-tests"
     )
     if (quick) {