Remove unnecessary exiv2 patch

packaging/flatpak/org.kde.kdenlive-nightly.json

@@ -302,10 +302,6 @@
           "url": "https://www.exiv2.org/builds/exiv2-0.27.3-Source.tar.gz",
           "sha256": "a79f5613812aa21755d578a297874fb59a85101e793edc64ec2c6bd994e3e778"
         },
-        {
-          "type": "patch",
-          "path": "patches/exiv2-fcf-protection-only-on-x86.patch"
-        }
       ]
     },
     {

packaging/flatpak/patches/exiv2-fcf-protection-only-on-x86.patch

-Author: Pino Toscano <pino@debian.org>
-Description: Use -fcf-protection only on x86 architectures
- It does not exist elsewhere.
-Forwarded: no
-Last-Update: 2020-08-09
-
---- a/cmake/compilerFlags.cmake
-+++ b/cmake/compilerFlags.cmake
-@@ -26,7 +26,10 @@ if ( MINGW OR UNIX OR MSYS ) # MINGW, Li
-         # This fails under Fedora, MinGW GCC 8.3.0 and CYGWIN/MSYS 9.3.0
-         if (NOT (MINGW OR CMAKE_HOST_SOLARIS OR CYGWIN OR MSYS) )
-             if (COMPILER_IS_GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 8.0)
--                add_compile_options(-fstack-clash-protection -fcf-protection)
-+                add_compile_options(-fstack-clash-protection)
-+                if (CMAKE_SYSTEM_PROCESSOR MATCHES "i686|x86_64")
-+                    add_compile_options(-fcf-protection)
-+                endif()
-             endif()
- 
-             if( (COMPILER_IS_GCC   AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 5.0) # Not in GCC 4.8