libgpg-error: replace pthreads-no-weak.patch with sed expression

Patch seems has no effect due to autoreconf.

packages/libgpg-error/build.sh

@@ -3,10 +3,10 @@ TERMUX_PKG_DESCRIPTION="Small library that defines common error values for all G
 TERMUX_PKG_LICENSE="LGPL-2.0"
 TERMUX_PKG_VERSION=1.36
 TERMUX_PKG_REVISION=1
+TERMUX_PKG_SRCURL=https://www.gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_SHA256=babd98437208c163175c29453f8681094bcaf92968a15cafb1a276076b33c97c
 TERMUX_PKG_BREAKS="libgpg-error-dev"
 TERMUX_PKG_REPLACES="libgpg-error-dev"
-TERMUX_PKG_SRCURL=https://www.gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_RM_AFTER_INSTALL="share/common-lisp"
 
 termux_step_post_extract_package() {
@@ -30,4 +30,7 @@ termux_step_post_extract_package() {
 
 termux_step_pre_configure() {
 	autoreconf -fi
+	# USE_POSIX_THREADS_WEAK is being enabled for on-device build and causes
+	# errors, so force-disable it.
+	sed -i 's/USE_POSIX_THREADS_WEAK/DONT_USE_POSIX_THREADS_WEAK/g' configure
 }

packages/libgpg-error/pthreads-no-weak.patch

@@ -1,12 +0,0 @@
-diff -uNr libgpg-error-1.36/m4/threadlib.m4 libgpg-error-1.36.mod/m4/threadlib.m4
---- libgpg-error-1.36/m4/threadlib.m4	2016-11-12 21:02:56.000000000 +0200
-+++ libgpg-error-1.36.mod/m4/threadlib.m4	2019-08-16 21:23:04.646225294 +0300
-@@ -213,8 +213,6 @@
-             [Define if the POSIX multithreading library can be used.])
-           if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then
-             if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then
--              AC_DEFINE([USE_POSIX_THREADS_WEAK], [1],
--                [Define if references to the POSIX multithreading library should be made weak.])
-               LIBTHREAD=
-               LTLIBTHREAD=
-             fi