What were the real reasons that coca was taken out of Coca Cola? Do these reasons mean that cocaine was not or is not harmful?

(1) Why we Took Coca Out of Coca-Cola
(2) Cocaine out of Coca-Cola_Blacks
Questions:
What were the real reasons that coca was taken out of Coca Cola?
Do these reasons mean that cocaine was not or is not harmful?
How then could you still justify the prohibition of Cocaine by the government of the USA