attempt to avoid spurious warnings in log. See

http://jira.public.thoughtworks.org/browse/CC-766

releng.control/cc_config.xml

@@ -135,6 +135,7 @@
     -->
     <project
         requireModification="false"
+        forceOnly="false"
         name="cleanup-artifacts-B">
         <schedule
             interval="${time.twentyFourHours}">
@@ -145,7 +146,7 @@
         </schedule>
         <modificationset>
          <!-- http://jira.public.thoughtworks.org/browse/CC-766 -->
-            <forceonly />
+            <alwaysbuild />
         </modificationset>
         <!--
             need to prevent, or override, default publishers, especially
@@ -182,9 +183,6 @@
                     value="wtpbuildTools" />
             </ant>
         </schedule>
-        <modificationset>
-            <forceonly />
-        </modificationset>
     </project>
     
     <project
@@ -260,9 +258,6 @@
         name="dali-R2.1-R"
         requireModification="false"
         forceOnly="true">
-        <modificationset>
-            <forceonly />
-        </modificationset>
         <schedule interval="${time.veryLongTime}">
             <ant>
                 <property
@@ -299,9 +294,6 @@
                 <property name="build.distribution" value="patches" />
             </ant>
         </schedule>
-        <modificationset>
-            <forceonly />
-        </modificationset>
         
         <publishers>
             <antpublisher
@@ -601,10 +593,6 @@
         requireModification="false"
         name="patches-R3.0.3-P"
         forceOnly="true">
-        <modificationset>
-           <!-- http://jira.public.thoughtworks.org/browse/CC-766 -->
-            <forceonly />
-        </modificationset>
         <schedule
             interval="${time.veryLongTime}">
             <ant>
@@ -723,10 +711,6 @@
         requireModification="false"
         name="wtp-R3.1-N"
         forceOnly="true">
-        <modificationset>
-           <!-- http://jira.public.thoughtworks.org/browse/CC-766 -->
-            <forceonly />
-        </modificationset>
         <schedule
             interval="${time.veryLongTime}">
             <ant antscript="${env.RELENG_CONTROL}/ant_low_priority.sh">