No. You do not have the Rogue Talent class feature. You have the slayer talent class feature and took a Rogue talent with it. That does not grant you the Rogue Talent class feature.
You are confusing a class feature with a sub category of said feature. A class feature, such as rogue talent, slayer talent, ninja trick, rage power, or magus arcana is a whole class feature all together, within that feature, you are granted multiple "abilities" that come at specific times in character progression. The abilities that you can get come from a list outlined withing the class feature its self. So the slayers one and only class feature of thus type, is called "slayer talents". Each ability you get within that class feature is a talent (no plural).
When you pick the rogue talent talent as a slayer talent, all its letting you do is chose one option from a different list. It doesn't grant you an entirely new class feature.