Revert "Initial gamerules commit"

This reverts commit 18389d6.

Author: Ayuto

addons/source-python/docs/source-python/source/developing/modules/engines.gamerules.rst

@@ -193,7 +193,6 @@ Set(SOURCEPYTHON_ENGINES_MODULE_SOURCES
     core/modules/engines/engines_server_wrap.cpp
     core/modules/engines/engines_sound_wrap.cpp
     core/modules/engines/engines_trace_wrap.cpp
-    core/modules/engines/engines_gamerules_wrap.cpp
 )
 
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