fix: do not return an error for successfully deleted dangling objects (#10938)

dangling objects when removed `mc admin heal -r` or crawler
auto heal would incorrectly return error - this can interfere
with usage calculation as the entry size for this would be
returned as `0`, instead upon success use the resultant
object size to calculate the final size for the object
and avoid reporting this in the log messages

Also do not set ObjectSize in healResultItem to be '-1'
this has an effect on crawler metrics calculating 1 byte
less for objects which seem to be missing their `xl.meta`

cmd/object-api-errors.go

@@ -130,9 +130,27 @@ func toObjectErr(err error, params ...string) error {
 			}
 		}
 	case errErasureReadQuorum:
-		err = InsufficientReadQuorum{}
+		if len(params) == 1 {
+			err = InsufficientReadQuorum{
+				Bucket: params[0],
+			}
+		} else if len(params) >= 2 {
+			err = InsufficientReadQuorum{
+				Bucket: params[0],
+				Object: params[1],
+			}
+		}
 	case errErasureWriteQuorum:
-		err = InsufficientWriteQuorum{}
+		if len(params) == 1 {
+			err = InsufficientWriteQuorum{
+				Bucket: params[0],
+			}
+		} else if len(params) >= 2 {
+			err = InsufficientWriteQuorum{
+				Bucket: params[0],
+				Object: params[1],
+			}
+		}
 	case io.ErrUnexpectedEOF, io.ErrShortWrite:
 		err = IncompleteBody{}
 	case context.Canceled, context.DeadlineExceeded:
@@ -163,10 +181,10 @@ func (e SlowDown) Error() string {
 }
 
 // InsufficientReadQuorum storage cannot satisfy quorum for read operation.
-type InsufficientReadQuorum struct{}
+type InsufficientReadQuorum GenericError
 
 func (e InsufficientReadQuorum) Error() string {
-	return "Storage resources are insufficient for the read operation."
+	return "Storage resources are insufficient for the read operation " + e.Bucket + "/" + e.Object
 }
 
 // Unwrap the error.
@@ -175,10 +193,10 @@ func (e InsufficientReadQuorum) Unwrap() error {
 }
 
 // InsufficientWriteQuorum storage cannot satisfy quorum for write operation.
-type InsufficientWriteQuorum struct{}
+type InsufficientWriteQuorum GenericError
 
 func (e InsufficientWriteQuorum) Error() string {
-	return "Storage resources are insufficient for the write operation."
+	return "Storage resources are insufficient for the write operation " + e.Bucket + "/" + e.Object
 }
 
 // Unwrap the error.
@@ -194,6 +212,11 @@ type GenericError struct {
 	Err       error
 }
 
+// Unwrap the error to its underlying error.
+func (e GenericError) Unwrap() error {
+	return e.Err
+}
+
 // InvalidArgument incorrect input argument
 type InvalidArgument GenericError