File fix-pkgconfig.patch of Package libXISF

diff -ru orig/libxisf.pc.in mod/libxisf.pc.in
--- orig/libxisf.pc.in	2023-06-02 08:50:37.000000000 +0200
+++ mod/libxisf.pc.in	2023-06-04 14:04:33.908583992 +0200
@@ -7,6 +7,5 @@
 Description: @CMAKE_PROJECT_DESCRIPTION@
 URL: @CMAKE_PROJECT_HOMEPAGE_URL@
 Version: @PROJECT_VERSION@
-Requires.private: @PC_REQUIRE_STR@
 Cflags: -I"${includedir}"
 Libs: -L"${libdir}" -lXISF