Return missing

[AbhishekPratap9]

return was missing as Result should be returned

[swernli]

These changes aren't needed.

For the latest Q#, @EntryPoint() is not required as the callable named Main is automatically treated as the program entry.

Also, Q# supports implicit returns, where the last statement in a block, when it does not have a semicolon, is the return value of the block. So the explicit return is not required.