Is there any steel bar that can be removed from the red circle wall?

Whether it is a load-bearing wall depends not on whether there are steel bars in it, but on its stress. It is difficult for this non-professional to judge. The simplest thing is to look at the drawings. Bearing walls must be marked with solid black lines on the drawing. As long as it is not a solid line, it is not a load-bearing wall and can be removed. In addition, the load-bearing wall is not absolutely impossible to dismantle. As long as the design is completed, the weight it bears can be safely transferred and the relevant approval procedures can be obtained. For example:

This structure transfers the force borne by the upper part to both sides through the arch.

But whether it is a load-bearing wall or not, it is best not to tear it down. After all, the upper and lower structures of a building are consistent, and the non-bearing wall still has to bear its own weight. Besides, a hero has three gangs. If the non-bearing wall is demolished, all the weight will be borne by the bearing wall alone, which will undoubtedly increase the workload of the bearing wall, eat up the design margin of the bearing wall and reduce the reliability. Moreover, more walls are demolished, and the amount of work and muck will also increase, which will increase the decoration cost and extend the decoration cycle. In short, it is better to tear it down less.