Do not try to run the svg validation script.

--- CMakeLists.txt.orig	2017-06-12 17:54:16 UTC
+++ CMakeLists.txt
@@ -64,18 +64,6 @@ function(generate_binary_resource target outfile)
 endfunction()
 endif()
 
-if(NOT WIN32)
-  find_program(BASH_EXE bash)
-  if (BASH_EXE)
-      file(GLOB_RECURSE SVGS "*.svg")
-      add_custom_target(breeze-validate-svg ALL
-          COMMAND ${BASH_EXE} ${CMAKE_SOURCE_DIR}/validate_svg.sh
-          WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-          SOURCES ${SVGS}
-      )
-  endif()
-endif()
-
 add_subdirectory(autotests)
 add_subdirectory(icons)
 add_subdirectory(icons-dark)
