Display version number correctly in installer builds from branches that properly set the name on Jenkins. (#5856)

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>

Code/Editor/CMakeLists.txt

@@ -131,7 +131,7 @@ ly_add_source_properties(
     PROPERTY COMPILE_DEFINITIONS 
     VALUES 
         O3DE_COPYRIGHT_YEAR=${LY_VERSION_COPYRIGHT_YEAR}
-        LY_BUILD=${LY_VERSION_BUILD_NUMBER}
+        LY_VERSION_BUILD_NUMBER=${LY_VERSION_BUILD_NUMBER}
         ${LY_PAL_TOOLS_DEFINES}
 )
 ly_add_source_properties(

Code/Editor/CryEdit.cpp

@@ -913,13 +913,9 @@ namespace
     QWidget* g_splashScreen = nullptr;
 }
 
-QString FormatVersion(const SFileVersion& v)
+QString FormatVersion([[maybe_unused]] const SFileVersion& v)
 {
-#if defined(LY_BUILD)
-    return QObject::tr("Version %1.%2.%3.%4 - Build %5").arg(v[3]).arg(v[2]).arg(v[1]).arg(v[0]).arg(LY_BUILD);
-#else
-    return QObject::tr("Version %1.%2.%3.%4").arg(v[3]).arg(v[2]).arg(v[1]).arg(v[0]);
-#endif
+    return QObject::tr("Version %1").arg(LY_VERSION_BUILD_NUMBER);
 }
 
 QString FormatRichTextCopyrightNotice()