gnu: qtbase: Remove obsolete patch.

This patch is no longer needed since 7930cfc989
was merged to core-updates.

* gnu/packages/patches/qtbase-glibc-compat.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
* gnu/packages/qt.scm (qtbase)[source](patches): Drop it.

gnu/local.mk

@@ -1097,7 +1097,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/python-waitress-fix-tests.patch		\
   %D%/packages/patches/qemu-glibc-2.27.patch 			\
   %D%/packages/patches/qt4-ldflags.patch			\
-  %D%/packages/patches/qtbase-glibc-compat.patch		\
   %D%/packages/patches/qtbase-use-TZDIR.patch			\
   %D%/packages/patches/qtscript-disable-tests.patch		\
   %D%/packages/patches/quagga-reproducible-build.patch          \

gnu/packages/patches/qtbase-glibc-compat.patch

@@ -1,50 +0,0 @@
-Fix qmake build with glibc 2.28.
-
-Taken from upstream:
-https://code.qt.io/cgit/qt/qtbase.git/commit/?id=25feee4e061b99edab79503d81f5bd045c6c8e3d
-
-diff --git a/src/corelib/global/qconfig-bootstrapped.h b/src/corelib/global/qconfig-bootstrapped.h
-index 3469ebe5e6..c5585ea32a 100644
---- a/src/corelib/global/qconfig-bootstrapped.h
-+++ b/src/corelib/global/qconfig-bootstrapped.h
-@@ -98,10 +98,18 @@
- #define QT_NO_QOBJECT
- #define QT_FEATURE_process -1
- #define QT_FEATURE_regularexpression -1
--#define QT_FEATURE_renameat2 -1
-+#ifdef __GLIBC_PREREQ
-+# define QT_FEATURE_renameat2 (__GLIBC_PREREQ(2, 28) ? 1 : -1)
-+#else
-+# define QT_FEATURE_renameat2 -1
-+#endif
- #define QT_FEATURE_sharedmemory -1
- #define QT_FEATURE_slog2 -1
--#define QT_FEATURE_statx -1
-+#ifdef __GLIBC_PREREQ
-+# define QT_FEATURE_statx (__GLIBC_PREREQ(2, 28) ? 1 : -1)
-+#else
-+# define QT_FEATURE_statx -1
-+#endif
- #define QT_FEATURE_syslog -1
- #define QT_NO_SYSTEMLOCALE
- #define QT_FEATURE_systemsemaphore -1
-diff --git a/src/corelib/io/qfilesystemengine_unix.cpp b/src/corelib/io/qfilesystemengine_unix.cpp
-index 0c9cdb8667..deb4a9f220 100644
---- a/src/corelib/io/qfilesystemengine_unix.cpp
-+++ b/src/corelib/io/qfilesystemengine_unix.cpp
-@@ -91,7 +91,6 @@ extern "C" NSString *NSTemporaryDirectory();
- #  include <sys/syscall.h>
- #  include <sys/sendfile.h>
- #  include <linux/fs.h>
--#  include <linux/stat.h>
- 
- // in case linux/fs.h is too old and doesn't define it:
- #ifndef FICLONE
-@@ -112,6 +111,7 @@ static int renameat2(int oldfd, const char *oldpath, int newfd, const char *newp
- #    endif
- 
- #    if !QT_CONFIG(statx) && defined(SYS_statx)
-+#      include <linux/stat.h>
- static int statx(int dirfd, const char *pathname, int flag, unsigned mask, struct statx *statxbuf)
- { return syscall(SYS_statx, dirfd, pathname, flag, mask, statxbuf); }
- #    elif !QT_CONFIG(statx) && !defined(SYS_statx)

gnu/packages/qt.scm

@@ -508,8 +508,7 @@ (define-public qtbase
               (base32
                "01q1rn5rp9biq3z38953z2hgm4nirvp2jfv8wg7isnld8v1yg0b3"))
              ;; Use TZDIR to avoid depending on package "tzdata".
-             (patches (search-patches "qtbase-use-TZDIR.patch"
-                                      "qtbase-glibc-compat.patch"))
+             (patches (search-patches "qtbase-use-TZDIR.patch"))
              (modules '((guix build utils)))
              (snippet
                ;; corelib uses bundled harfbuzz, md4, md5, sha3