lua-bit32: remove custom extract commands

With the reworked luarocks extraction, they are no longer needed.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lua-bit32/lua-bit32.mk

@@ -11,10 +11,4 @@ LUA_BIT32_SOURCE = bit32-$(LUA_BIT32_VERSION).src.rock
 LUA_BIT32_LICENSE = MIT
 LUA_BIT32_LICENSE_FILES = $(LUA_BIT32_SUBDIR)/LICENSE
 
-define LUA_BIT32_EXTRACT_CMDS
-        cd $(LUA_BIT32_DIR) && \
-                $(LUAROCKS_RUN_ENV) $(LUAROCKS_RUN_CMD) unpack --force $(DL_DIR)/$(LUA_BIT32_SOURCE) && \
-		mv bit32-$(LUA_BIT32_VERSION)/* .
-endef
-
 $(eval $(luarocks-package))