sdl12-compat: remove duplicated set_target_properties()

SDL Commits
1 
From dc76b7c9b70e957b079cd52ef6a74a44c0ec4899 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Wed, 2 Jun 2021 05:55:02 +0300
Subject: [PATCH] remove duplicated set_target_properties()

---
 CMakeLists.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59e7762..6256c3a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,7 +97,6 @@ if(SDL12TESTS)
         add_executable(${_NAME} ${_SRCS})
         target_include_directories(${_NAME} PRIVATE "include/SDL")
         target_link_libraries(${_NAME} SDL)
-        set_target_properties(${_NAME} PROPERTIES COMPILE_DEFINITIONS "HAVE_OPENGL")
         # Turn off MSVC's aggressive C runtime warnings for the old test programs.
         if(MSVC)
           set_target_properties(${_NAME} PROPERTIES COMPILE_DEFINITIONS "HAVE_OPENGL;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE")