fix 100mb download limit

[lidarbtc]

Description

Remove getmaxRoutines(and just return parameter)

func (c *Client) getMaxRoutines(limit int) int {
	routines := 10

	if c.MaxRoutines > 0 {
		routines = c.MaxRoutines
	}

	if limit > 0 && routines > limit {
		routines = limit
	}

	return routines
}

This function simply limits MaxRoutines to 10.

Since each chunk is 10MB, the maximum download size is limited to 100MB.

So I removed the download size limit by deleting the function.

Issues to fix

Please link issues this PR will fix:
#298

Reminding

Something you can do before PR to reduce time to merge

• run "make build" to build the code
• run "make format" to reformat the code
• run "make lint" if you are using unix system
• run "make test-integration" to pass all tests

[corny]

We should still respect the MaxRoutines setting to don't have more routines. Please try my branch fix-298