LTSpice removing PWL point
I49 r49 inp49 PWL REPEAT FOREVER( 0.200 9.36 0.201 5.62 0.399 5.62 0.400 9.36 2.200 9.36 ) ENDREPEAT


When you repeat this sequence, you end up with points at (0.4, 9.36), (2.2, 9.36), and then (2.4, 9.36) (from the repetition of (0.2, 9.36)). Since these 3 points are co-linear, you can remove the middle one without changing the piecewise linear relationship. 

The program is probably just doing that to reduce the complexity of calculating the points during the simulation.