Revert "add MUX support"

It turns out that they make everything worse and they don't PnR.

This reverts commit 3eff2271d0fe25632f7e6b22cf0be078d2cd9990.

1 files changed, 0 insertions, 13 deletions

diff --git a/techlibs/gowin/cells_sim.v b/techlibs/gowin/cells_sim.v
index a2f60b99e..b70d1299c 100644
--- a/techlibs/gowin/cells_sim.v
+++ b/techlibs/gowin/cells_sim.v
@@ -24,19 +24,6 @@ module LUT4(output F, input I0, I1, I2, I3);
 	assign F = I0 ? s1[1] : s1[0];
 endmodule
 
-module MUX2 (I0, I1, S0, O);
-input I0, I1, S0;
-output O;
-assign O = S0 ? I1 : I0;
-endmodule
-
-module MUX4 (I0, I1, I2, I3, S0, S1, O);
-input I0, I1, I2, I3, S0, S1;
-output O;
-assign O = S1 ? (S0 ? I3 : I2) :
-                (S0 ? I1 : I0);
-endmodule
-
 module DFF (output reg Q, input CLK, D);
 	parameter [0:0] INIT = 1'b0;
 	initial Q = INIT;