[fmt] remove fn_call_width option (was removed upstream)

gnzlbg · gnzlbg · commit dc5d08df68e8 · 2017-12-22T00:24:23.000+01:00
diff --git a/rustfmt.toml b/rustfmt.toml
@@ -1,5 +1,4 @@
 max_width = 79
-fn_call_width = 79
 wrap_comments = true
 error_on_line_overflow = false
 fn_args_density = "Compressed"
