As pointed out by Akihiko Odaki, all Win32 libraries in MinGW have lowercase
names.  This means that on (case-insensitive) Windows you can use the mixed-case
names suggested by Microsoft or all-lowercase names, while on Linux you need to
make them lowercase.

QEMU was already using lowercase names, so there is no need to test the
mixed-case name version of libSynchronization.  Remove the unnecessary test
and while at it make all the tests use "required: true".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/meson.build b/meson.build
index 34729c2a3dd..ed60be2a2d0 100644
--- a/meson.build
+++ b/meson.build
@@ -843,15 +843,12 @@ host_dsosuf = '.so'
 if host_os == 'windows'
   midl = find_program('midl', required: false)
   widl = find_program('widl', required: false)
-  pathcch = cc.find_library('pathcch')
-  synchronization = cc.find_library('Synchronization', required: false)
-  if not synchronization.found()
-    # The library name is lowercase on mingw
-    synchronization = cc.find_library('synchronization', required: true)
-  endif
 
-  socket = cc.find_library('ws2_32')
-  winmm = cc.find_library('winmm')
+  # MinGW uses lowercase for library names
+  pathcch = cc.find_library('pathcch', required: true)
+  synchronization = cc.find_library('synchronization', required: true)
+  socket = cc.find_library('ws2_32', required: true)
+  winmm = cc.find_library('winmm', required: true)
 
   win = import('windows')
   version_res = win.compile_resources('version.rc',
-- 
2.49.0