lttng-babeltrace: remove patch applied upstream

In commit 5b0dac7ef5d8106ec77d128c53f480fd8721c05c, when bumping to
lttng-babeltrace, one patch was kept while it had been applied in the
upstream babeltrace project, causing a build failure.

The patch 0003-fix-uuid-support-detection-on-static-build.patch has been
applied upstream as 2741f55be80ae8af169ae795ea28d2a39c18fa60 in the
master branch, and as d94e7873e9080e820e7742e468736b1317a88de1 in the
maintenance branch that was used to tag 1.5.0.

Fixes:

  http://autobuild.buildroot.net/results/585f960eb81b0e15858aadc4aca516af23012b61/
  (and about a hundred of similar build failures)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lttng-babeltrace/0003-fix-uuid-support-detection-on-static-build.patch

@@ -1,86 +0,0 @@
-From 2741f55be80ae8af169ae795ea28d2a39c18fa60 Mon Sep 17 00:00:00 2001
-From: Samuel Martin <s.martin49@gmail.com>
-Date: Wed, 1 Jun 2016 21:56:32 +0200
-Subject: [PATCH] configure: fix uuid support detection on static build
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This change adds uuid detection using pkg-config helper before falling
-back on the standard AC_CHECK_LIB detection for platforms missing
-pkg-config.
-
-AC_CHECK_LIB function achieves its test by trying to link against the
-requested library, without taking care of its dependency
-requirements/flags that may differ between different targets.
-Therefore, in case of static build, it can fail on the uuid detection
-like [1], because the uuid's dependency flags (regarding gettext) are
-missing.
-
-Instead, using pkg-config to do the check will take care of getting and
-setting all required flags.
-
-This issue [1] has been triggered on Buildroot farms.
-
-[1] http://autobuild.buildroot.net/results/43b/43b98ddf9eb44152ed9ac4a98d887af14831d8da/build-end.log
-
-Signed-off-by: Samuel Martin <s.martin49@gmail.com>
-Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
-[Philippe: grabbed from this upstream patch:
-    https://github.com/efficios/babeltrace/commit/2741f55be80ae8af169ae795ea28d2a39c18fa60.patch
-]
-Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
----
- configure.ac | 31 +++++++++++++++++++++----------
- 1 file changed, 21 insertions(+), 10 deletions(-)
-
-diff --git a/configure.ac b/configure.ac
-index 84f9000..2f5e3f8 100644
---- a/configure.ac
-+++ b/configure.ac
-@@ -163,24 +163,35 @@ AC_CHECK_FUNCS([uuid_generate],
-   link_with_libuuid=no
- ],
- [
--  # Check for libuuid
--  AC_CHECK_LIB([uuid], [uuid_generate],
-+  # First, check the pkg-config module is available, otherwise explicitly check
-+  # for libuuid, or uuid support in the C-library.
-+  PKG_CHECK_MODULES([UUID], [uuid],
-   [
-+    LIBS="${UUID_LIBS} ${LIBS}"
-+    CFLAGS="${CFLAGS} ${UUID_CFLAGS}"
-     AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBUUID], 1, [Has libuuid support.])
-     link_with_libuuid=yes
-   ],
-   [
--    # libuuid not found, check for uuid_create in libc.
--    AC_CHECK_LIB([c], [uuid_create],
-+    # Check for libuuid
-+    AC_CHECK_LIB([uuid], [uuid_generate],
-     [
--      AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
--      link_with_libc_uuid=yes
-+      AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBUUID], 1, [Has libuuid support.])
-+      link_with_libuuid=yes
-     ],
-     [
--      # for MinGW32 we have our own internal implemenation of uuid using Windows functions.
--      if test "x$MINGW32" = xno; then
--        AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
--      fi
-+      # libuuid not found, check for uuid_create in libc.
-+      AC_CHECK_LIB([c], [uuid_create],
-+      [
-+        AC_DEFINE_UNQUOTED([BABELTRACE_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
-+        link_with_libc_uuid=yes
-+      ],
-+      [
-+        # for MinGW32 we have our own internal implemenation of uuid using Windows functions.
-+        if test "x$MINGW32" = xno; then
-+          AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify their location.])
-+        fi
-+      ])
-     ])
-   ])
- ])

package/lttng-babeltrace/lttng-babeltrace.mk

@@ -14,9 +14,7 @@ HOST_LTTNG_BABELTRACE_DEPENDENCIES = \
 	host-popt host-util-linux host-libglib2 host-pkgconf
 HOST_LTTNG_BABELTRACE_CONF_OPTS += --disable-debug-info
 
-# For:
-#   0002-m4-ax_lib_elfutils.m4-add-cache-variable.patch
-#   0003-fix-uuid-support-detection-on-static-build.patch
+# For: 0002-m4-ax_lib_elfutils.m4-add-cache-variable.patch
 LTTNG_BABELTRACE_AUTORECONF = YES
 
 ifeq ($(BR2_PACKAGE_ELFUTILS),y)