Unnecessary go routine spawn. (#7879)

* Unnecessary go routine spawn.
* Remove unnecessary local variable creation.

Signed-off-by: iurii <iurii@coins.ph>
Co-authored-by: iurii <iurii@coins.ph>

scrape/scrape.go

@@ -373,7 +373,7 @@ func (sp *scrapePool) reload(cfg *config.ScrapeConfig) error {
 			wg.Done()
 
 			newLoop.setForcedError(forcedErr)
-			go newLoop.run(interval, timeout, nil)
+			newLoop.run(interval, timeout, nil)
 		}(oldLoop, newLoop)
 
 		sp.loops[fp] = newLoop
@@ -435,7 +435,6 @@ func (sp *scrapePool) sync(targets []*Target) {
 	)
 
 	for _, t := range targets {
-		t := t
 		hash := t.hash()
 
 		if _, ok := sp.activeTargets[hash]; !ok {