ENH: remove warnings

Source/cmGetTargetPropertyCommand.cxx

@@ -71,8 +71,7 @@ bool cmGetTargetPropertyCommand::InitialPass(
       }
     else
       {
-      const char *prop = 0;
-      prop = target.GetProperty(args[2].c_str());
+      const char *prop = target.GetProperty(args[2].c_str());
       if (prop)
         {
         m_Makefile->AddDefinition(var, prop);

Source/cmLocalUnixMakefileGenerator.cxx

@@ -3081,7 +3081,7 @@ cmLocalUnixMakefileGenerator::CreateSafeUniqueObjectFileName(const char* sin)
   if ( it == m_UniqueObjectNamesMap.end() )
     {
     std::string ssin = sin;
-    bool done = false;
+    bool done;
     int cc = 0;
     char rpstr[100];
     sprintf(rpstr, "_p_");