[#136] Revert "[#2260] services/object: Do not assemble object with TTL=1"

This reverts commit 2567f8020e. It assumes
that assembling logic could break some failover scenarios if request
forwarding is done. However, it also breaks requesting big objects via a
non-container node with TTL=2. Failover has been rechecked without that
commit and no problems were found. Any (if found) other bugs related to
the forwarding and object assembling must be solved more carefully.

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>

pkg/services/object/get/exec.go

@@ -115,7 +115,7 @@ func (exec execCtx) key() (*ecdsa.PrivateKey, error) {
 }
 
 func (exec *execCtx) canAssemble() bool {
-	return !exec.isRaw() && !exec.headOnly() && !exec.isLocal()
+	return !exec.isRaw() && !exec.headOnly()
 }
 
 func (exec *execCtx) splitInfo() *objectSDK.SplitInfo {