doc: remove extraneous sentence in events.md

Since the previous sentence describes `10` as a default, and the
following sentence explains how to modify that default, it is
unnecessary to explain that "Obviously, not all events should be limited
to just 10 listeners."

PR-URL: #32457
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

Author: Trott

doc/api/events.md

@@ -715,10 +715,9 @@ added: v0.3.5
 
 By default `EventEmitter`s will print a warning if more than `10` listeners are
 added for a particular event. This is a useful default that helps finding
-memory leaks. Obviously, not all events should be limited to just 10 listeners.
-The `emitter.setMaxListeners()` method allows the limit to be modified for this
-specific `EventEmitter` instance. The value can be set to `Infinity` (or `0`)
-to indicate an unlimited number of listeners.
+memory leaks. The `emitter.setMaxListeners()` method allows the limit to be
+modified for this specific `EventEmitter` instance. The value can be set to
+`Infinity` (or `0`) to indicate an unlimited number of listeners.
 
 Returns a reference to the `EventEmitter`, so that calls can be chained.