This is a partial (except #include) revert of aog/1153134. Our Android change is no longer needed since upstream added moultiouch support: https://lore.kernel.org/linux-input/20210115002623.8576-1-vasyl.vavrychuk@opensynergy.com/ Bug: 143488374 Test: boot sdk_phone64_x86_x64, check multitouch works Test: when both input_mt_init_slots calls are removed Test: multitouch stops working (expected). Signed-off-by: Roman Kiryanov <rkir@google.com> Change-Id: I04a1c481b78c25a841fbae109feb73bcc0ff6548