The wall you are wanting to remove is not a bearing wall by looking at the framing in the attic and the roof lines of the house.
Removing interior walls with hip roofs.
However a house with a hip roof structure suggests that all the exterior walls are bearing walls.
First determine if the wall you want to remove is a load bearing wall meaning it supports the floor above.
But there are five possible exceptions to look out for.
Residentiall roof trusses are designed to bear only on the exterior walls at each end of the span.
Just to be on the side of caution i would install an 8ft 4x4 directly centered under the splice with lag bolts and remove the vertical.
Structural walls on two story homes with gable roofs are commonly the center wall running parallel with the length of the house and the front and rear walls on the exterior.
Remember the alignment they generally go from side to side on most modern homes across the width of the house.
Interior walls often provide hidden passage for utilities such as hvac heating ventilation and air conditioning electrical wiring and plumbing.
These are large pieces of lumber going across the house from side to side supporting the floor roof and are generally 16 apart.
I m a home builder carpenter 25yrs experience fixing others screwed up stuff.