build: drop curl.exe on Windows

Curl is already shipped by default on Windows 10 starting from versions
1803. As we already require version 1809 we can safely remove it.

src/nvim/CMakeLists.txt

@@ -744,15 +744,12 @@ if(WIN32)
     "file(MAKE_DIRECTORY \"${PROJECT_BINARY_DIR}/windows_runtime_deps/platforms\")")
   foreach(DEP_FILE IN ITEMS
       cat.exe
-      curl-ca-bundle.crt
-      curl.exe
       diff.exe
       tee.exe
       win32yank.exe
       xxd.exe
 
-      ${NVIMQT_DEPS}
-      )
+      ${NVIMQT_DEPS})
   get_filename_component(DEP_FILE_DIR ${DEP_FILE} DIRECTORY)
   set(EXTERNAL_BLOBS_SCRIPT "${EXTERNAL_BLOBS_SCRIPT}\n"
     "file(COPY \"${DEPS_PREFIX}/bin/${DEP_FILE}\"