Fix: Remove unused constant bmqsys::ThreadUtil::k_SUPPORT_THREAD_NAME

With the previous commit, this constant is no longer used in BlazingMQ.
Because it is not part of our public interface, it is safe to remove this
constant.  This patch removes it.

Signed-off-by: Patrick M. Niedzielski <[email protected]>

Author: pniedzielski

src/groups/bmq/bmqsys/bmqsys_threadutil.cpp

@@ -48,14 +48,6 @@ bslmt::ThreadAttributes ThreadUtil::defaultAttributes()
     return attributes;
 }
 
-// LINUX
-// -----
-#if defined(BSLS_PLATFORM_OS_LINUX)
-const bool ThreadUtil::k_SUPPORT_THREAD_NAME = true;
-#else
-const bool ThreadUtil::k_SUPPORT_THREAD_NAME = false;
-#endif
-
 void ThreadUtil::setCurrentThreadName(const bsl::string& value)
 {
     bslmt::ThreadUtil::setThreadName(value);

src/groups/bmq/bmqsys/bmqsys_threadutil.h

@@ -47,12 +47,6 @@ namespace bmqsys {
 
 /// Utility namespace for thread management
 struct ThreadUtil {
-    // CONSTANTS
-
-    /// Boolean constant indicating whether the current platform supports
-    /// naming thread.
-    static const bool k_SUPPORT_THREAD_NAME;
-
     // CLASS METHODS
 
     /// Return `bslmt::ThreadAttributes` object pre-initialized with default