csound: remove libm patch

srcpkgs/csound/patches/libm.patch

@@ -1,47 +0,0 @@
-diff --git CMake/gLists.txt CMake/gLists.txt
-index 2b16079..18a6ad1 100644
---- CMakeLists.txt
-+++ CMakeLists.txt
-@@ -97,6 +97,10 @@ endfunction(make_executable)
- function(make_utility name srcs)
-     make_executable(${name} "${srcs}" "${CSOUNDLIB}")
-     add_dependencies(${name} ${CSOUNDLIB})
-+
-+    if(LINUX)
-+        target_link_libraries(${name} m)
-+    endif()
- endfunction()
-
-
-diff --git frontends/CMakeLists.txt frontends/CMakeLists.txt
-index d0e3a21..b31f37a 100644
---- frontends/CMakeLists.txt
-+++ frontends/CMakeLists.txt
-@@ -43,6 +43,9 @@ endfunction(make_plugin_frontend)
-
- # We need a different name to avoid clashes with float libcsound
- make_executable(csound-bin "${CS_MAIN_SRCS}" "${CSOUNDLIB}" csound)
-+if(LINUX)
-+  target_link_libraries(csound-bin m)
-+endif()
-
- message(STATUS "Building csLadspa")
-
-diff --git util/CMakeLists.txt util/CMakeLists.txt
-index 25089cc..ebf0aa5 100644
---- util/CMakeLists.txt
-+++ util/CMakeLists.txt
-@@ -23,9 +23,11 @@ if(BUILD_UTILITIES)
-     make_utility(hetro       het_main.c)
-     make_utility(lpanal      lpc_main.c)
-     make_utility(lpc_export  lpcx_main.c)
--    target_link_libraries(lpc_export m)
-     make_utility(lpc_import  lpci_main.c)
--    make_executable(mixer-bin   mixer_main.c   "${CSOUNDLIB}" mixer)
-+    if(LINUX)
-+      make_executable(mixer-bin   mixer_main.c   "${CSOUNDLIB}" mixer)
-+    endif()
-+    target_link_libraries(mixer-bin m)
-     make_utility(pvanal      pvc_main.c)
-     make_utility(pvlook      pvl_main.c)
-     make_utility(pv_export   pvx_main.c)