Fix timer GC delays in the Linux filesystem collector (#2169)
Fix timer GC delays in the Linux filesystem collector (#2169)

Use `time.NewTimer()` and explicit `Stop()` to avoid memory bloat / GC problems with `time.After()` in the Linux filesystem collector timeout handling.

Signed-off-by: bawenmao <1981bbd40910957ffc2aaff97b79b0289392b9a6@sogou-inc.com>
prometheus/node_exporter,prometheus/node_exporter,prometheus/node_exporter