Cleanup firebird build files.

Change-Id: I347734cfcc5970d68a1deaef8b06e15a43d80639

firebird/ExternalPackage_firebird.mk

@@ -11,34 +11,6 @@ $(eval $(call gb_ExternalPackage_ExternalPackage,firebird,firebird))
 
 $(eval $(call gb_ExternalPackage_use_external_project,firebird,firebird))
 
-#$(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,inc/external/firebird,\
-#	gen/firebird/include/ib_util.h \
-#	gen/firebird/include/ibase.h \
-#	gen/firebird/include/iberror.h \
-#	gen/firebird/include/perf.h \
-#))
-
-# Need to be added?
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,share/firebird,\
-# 	gen/install/misc/firebird.conf \
-# ))
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,share/firebird,\
-# 	gen/firebird/firebird.msg \
-# ))
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,bin/firebird,\
-# 	gen/firebird/bin/isql \
-# 	gen/firebird/bin/isql_static \
-# ))
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,share/firebird,\
-# 	gen/install/misc/fbintl.conf \
-# ))
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,share/firebird,\
-# 	gen/firebird/intl/libfbintl.so \
-# ))
-# $(eval $(call gb_ExternalPackage_add_unpacked_files,firebird,share/firebird,\
-# 	gen/firebird/security2.fdb \
-# ))
-
 ifeq ($(OS)-$(COM),WNT-MSC)
 $(eval $(call gb_ExternalPackage_add_file,firebird,bin/ifbembed.dll,gen/firebird/bin/ifbembed.dll))
 $(eval $(call gb_ExternalPackage_add_file,firebird,lib/ifbembed.lib,gen/firebird/bin/ifbembed.lib))

firebird/ExternalProject_firebird.mk

@@ -17,11 +17,6 @@ $(eval $(call gb_ExternalProject_use_externals,firebird,\
 	libatomic_ops \
 ))
 
-# Dependency in 3.0
-# $(eval $(call gb_ExternalProject_use_packages,firebird, \
-#     tommath \
-# ))
-
 $(eval $(call gb_ExternalProject_register_targets,firebird,\
 	build \
 ))

firebird/Module_firebird.mk

@@ -10,7 +10,6 @@
 $(eval $(call gb_Module_Module,firebird))
 
 ifeq ($(SYSTEM_FIREBIRD),NO)
-
 $(eval $(call gb_Module_add_targets,firebird,\
 	ExternalPackage_firebird \
 	ExternalProject_firebird \