gowin: Remove show command from tests.

tests/arch/gowin/mux.ys

diff --git a/tests/arch/gowin/mux.ys b/tests/arch/gowin/mux.ys
index 4990be4..afad29a 100644
--- a/tests/arch/gowin/mux.ys
+++ b/tests/arch/gowin/mux.ys
@@ -45,6 +45,5 @@
 cd mux16 # Constrain all select calls below inside the top module
 select -assert-count 20 t:IBUF
 select -assert-count 1 t:OBUF
-show
 
 select -assert-none t:LUT4 t:MUX2_LUT6 t:MUX2_LUT5 t:MUX2_LUT6 t:MUX2_LUT7 t:MUX2_LUT8 t:IBUF t:OBUF %% t:* %D