fix(src/prime.go): refactor go codes, optimaze it

[mohamadnabikhani]

It's seem that go version code is slower than python and js and it didn't make sense for me, so I looked at the code and for some reason if statement inside a loop make the code slower so I rewrite it and move the if statement to for conventional statement. here is the benchmark result I've got for before and after the change:

before:
BenchmarkPrime-8 311378482 3.755 ns/op 0 B/op 0 allocs/op

after:
BenchmarkPrime-8 1000000000 0.3114 ns/op 0 B/op 0 allocs/op

it's like the updated code is 10x faster than the old one.

[ali77gh]

The answer is wrong because execution will exit the loop when first non-prime number found.

❯ go run prime.go
0
0ms%  

But "Pashmam Rikht" for a second.

[mohamadnabikhani]

Me too. :))))
Sorry, I know. I forget running this script. that's why I closed this pull request. still working on it.