Revert "Turn on memory profiling so that it is tested"

This reverts commit 5f5afbe.

We need this off by default. The necessary testing has been done.

Author: dsarmany

CMakeLists.txt

@@ -113,11 +113,11 @@ ecbuild_add_option( FEATURE OUTPUT_MANAGER_TOOL
                     DESCRIPTION "Enable generation of standalone tool" )
 
 ecbuild_add_option( FEATURE MULTIO_SERVER_MEMORY_PROFILE
-                    DEFAULT ON
+                    DEFAULT OFF
                     DESCRIPTION "Enable multio server memory profiling" )
 
 ecbuild_add_option( FEATURE MULTIO_CLIENT_MEMORY_PROFILE
-                    DEFAULT ON
+                    DEFAULT OFF
                     DESCRIPTION "Enable multio client memory profiling" )
 
 ### export package info