Remove removed file from nls.mk

part of revert "Add DECLARE STATEMENT support to ECPG."

src/interfaces/ecpg/ecpglib/nls.mk

 # src/interfaces/ecpg/ecpglib/nls.mk
 CATALOG_NAME     = ecpglib
 AVAIL_LANGUAGES  = cs de es fr it ja ko pl pt_BR ru sv tr uk vi zh_CN
-GETTEXT_FILES    = connect.c cursor.c descriptor.c error.c execute.c misc.c
+GETTEXT_FILES    = connect.c descriptor.c error.c execute.c misc.c
 GETTEXT_TRIGGERS = ecpg_gettext
 GETTEXT_FLAGS    = ecpg_gettext:1:pass-c-format