teharri said:
what do you guys think of removing the line Obi-wan says to Luke about how Yoda intructed him.

I thought it could just end with their you will learn from yoda, the jedi master.

Just a thought.

Why? There's enough evidence Yoda gave Obi-Wan instruction in the prequels. The first line out of Kenobi's mouth in EPI is that "But Master Yoda said I should be mindful of the future." Yoda is shown training younglings in AOTC, in ROTS Yoda says "Master Kenobi, wait a moment.
In your solitude on Tatooine, training I have for you." Kenobi also mentions to Yoda in ESB "Was I any different when you taught me?"