Revert "[lldb][test] check if CoreDumping info is supported (llvm#160333)"

This reverts commit 02d8fb5.

Author: da-viper

lldb/unittests/Host/posix/HostTest.cpp

@@ -15,10 +15,6 @@
 #include <cerrno>
 #include <sys/resource.h>
 
-#ifdef __linux__
-#include <linux/version.h>
-#endif // __linux__
-
 using namespace lldb_private;
 
 namespace {
@@ -120,12 +116,7 @@ TEST_F(HostTest, GetProcessInfoSetsPriority) {
   ASSERT_TRUE(Info.IsZombie().has_value());
   ASSERT_FALSE(Info.IsZombie().value());
 
-  // CoreDumping was added in kernel version 4.15.
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)
   ASSERT_TRUE(Info.IsCoreDumping().has_value());
   ASSERT_FALSE(Info.IsCoreDumping().value());
-#else
-  ASSERT_FALSE(Info.IsCoreDumping().has_value());
-#endif
 }
 #endif