Revert "Use metatables to make gGlobalSoundSource readonly"

This reverts commit a905f317a7.

autogen/lua_constants/built-in.lua

@@ -306,20 +306,8 @@ end
 -- sound --
 -----------
 
-local function read_only(t)
-    local proxy = {}
-    local mt = { -- create metatable
-        __index = t,
-        __newindex = function()
-            error('attempt to update a read-only table', 2)
-        end
-    }
-    setmetatable(proxy, mt)
-    return proxy
-end
-
 --- @type Vec3f
-gGlobalSoundSource = read_only({ x = 0, y = 0, z = 0 })
+gGlobalSoundSource = { x = 0, y = 0, z = 0 }
 
 --- @param bank number
 --- @param soundID number

autogen/lua_definitions/constants.lua

@@ -308,20 +308,8 @@ end
 -- sound --
 -----------
 
-local function read_only(t)
-    local proxy = {}
-    local mt = { -- create metatable
-        __index = t,
-        __newindex = function()
-            error('attempt to update a read-only table', 2)
-        end
-    }
-    setmetatable(proxy, mt)
-    return proxy
-end
-
 --- @type Vec3f
-gGlobalSoundSource = read_only({ x = 0, y = 0, z = 0 })
+gGlobalSoundSource = { x = 0, y = 0, z = 0 }
 
 --- @param bank number
 --- @param soundID number

src/pc/lua/smlua_constants_autogen.c

@@ -272,19 +272,8 @@ char gSmluaConstants[] = ""
 "-----------\n"
 "-- sound --\n"
 "-----------\n"
-"local function read_only(t)\n"
-"    local proxy = {}\n"
-"    local mt = { -- create metatable\n"
-"        __index = t,\n"
-"        __newindex = function()\n"
-"            error('attempt to update a read-only table', 2)\n"
-"        end\n"
-"    }\n"
-"    setmetatable(proxy, mt)\n"
-"    return proxy\n"
-"end\n"
 "--- @type Vec3f\n"
-"gGlobalSoundSource = read_only({ x = 0, y = 0, z = 0 })\n"
+"gGlobalSoundSource = { x = 0, y = 0, z = 0 }\n"
 "--- @param bank number\n"
 "--- @param soundID number\n"
 "--- @param priority number\n"