core: Remove @accumulate

Accumulators were an ancient TAME feature removed long ago during The Great
Refactoring (...okay, that part didn't fit the definition of a "refactor",
but that's technically what that's referring to).

TAMER will not accept it.

DEV-7145

core/cond.xml

@@ -149,7 +149,7 @@
     </param>
 
     <!-- simply returns a constant value for the class match -->
-    <rate-each class="@class@" accumulate="none" generates="@generates@" index="k">
+    <rate-each class="@class@" generates="@generates@" index="k">
       <c:product>
         <if name="@value@">
           <c:value-of name="@value@" />

core/numeric/convert.xml

@@ -33,30 +33,6 @@
   <import package="round" export="true" />
 
 
-  <!-- even more trivial, but again, cuts down on code -->
-  <template name="_scalarToAccum_" desc="Simply accumulates a scalar">
-    <param name="@scalar@" desc="Scalar to accumulate" />
-    <param name="@accum@" desc="Accumulator to accumulate into" />
-
-    <!-- this is useless, but required -->
-    <param name="@yields@" desc="Value to yield into, since it's required (useless)">
-      <text>__accum_</text>
-      <param-value name="@accum@" />
-      <text>_</text>
-      <param-value name="@scalar@" />
-    </param>
-
-    <param name="@type@" desc="Accumulation method">
-      <text>all</text>
-    </param>
-
-    <rate yields="@yields@">
-      <accumulate into="@accum@" type="@type@" />
-      <c:value-of name="@scalar@" />
-    </rate>
-  </template>
-
-
   <!--
     Map values falling within adjacent intervals
 

core/numeric/minmax.xml

@@ -102,7 +102,7 @@
       <param-value name="@generates@" />
     </param>
 
-    <rate-each class="@class@" accumulate="none" yields="@yields@" generates="@generates@" index="k">
+    <rate-each class="@class@" yields="@yields@" generates="@generates@" index="k">
       <c:apply name="max">
         <c:arg name="max1">
           <c:value-of name="@a@" index="k" />

core/vector/arithmetic.xml

@@ -56,7 +56,7 @@
         <text></text>
       </param>
 
-      <rate accumulate="none" yields="@yields@">
+      <rate yields="@yields@">
         <c:sum of="@a@" index="k" generates="@into@" desc="@gendesc@" sym="@sym@">
           <c:value-of name="@a@" index="k" />
           <c:value-of name="@b@" index="k" />

core/vector/cmatch.xml

@@ -74,7 +74,7 @@
 
     <!-- this conversion is as simple as using a generator to yield the value
          of _CMATCH_ for each index -->
-    <rate class="@class@" accumulate="none" yields="@yields@" always="true" keep="@keep@">
+    <rate class="@class@" yields="@yields@" always="true" keep="@keep@">
       <c:sum of="_CMATCH_" index="k" generates="@generates@" desc="@gendesc@" sym="@sym@">
         <c:value-of name="_CMATCH_" index="k" />
       </c:sum>

core/vector/matrix.xml

@@ -80,7 +80,7 @@
       <param-value name="@line@" />
     </param>
 
-    <rate-each class="@line@" accumulate="none" yields="@yields@" generates="@into@" index="k">
+    <rate-each class="@line@" yields="@yields@" generates="@into@" index="k">
       <!-- take the dot product of the two vectors (each part of a larger matrix)
            to get the rate for the associated class code -->
       <c:product dot="true" label="Dot product between the class and rate vectors for each location will yield the respective rate per location">

core/vector/minmax.xml

@@ -315,7 +315,7 @@
       <param-value name="@generates@" />
     </param>
 
-    <rate-each class="@class@" accumulate="none" yields="@yields@" generates="@generates@" index="@index@">
+    <rate-each class="@class@" yields="@yields@" generates="@generates@" index="@index@">
       <c:apply name="maxreduce">
         <c:arg name="maxreduce_set">
           <c:vector>