The ornamental design for a toiletseatreducer, as shown and described.
2., 4., and 5. Toilet seat reducers
2.1 : Perspective
2.2 : Front
2.3 : Right
2.4 : Left
2.5 : Top
2.7 : Back
4.1 : Right
4.2 : Front
4.3 : Left
4.4 : Back
4.5 : Top
4.6 : Bottom
4.7 : Perspective
5.1 : Right
5.2 : Perspective
5.3 : Top
5.4 : Front
5.5 : Back
5.6 : Left
The broken lines in Fig. 4.6 depict unclaimed portions of the toilet seat reducers and show unclaimed interior depths of the toilet seat reducers. The broken lines form no part of the claimed design.