Applying part of patch in XALANJ-2061.
Dropping a simple variable assignment to 
a variable that is never used.
diff --git a/src/org/apache/xml/utils/FastStringBuffer.java b/src/org/apache/xml/utils/FastStringBuffer.java
index a26963a..d8c30f1 100644
--- a/src/org/apache/xml/utils/FastStringBuffer.java
+++ b/src/org/apache/xml/utils/FastStringBuffer.java
@@ -1134,8 +1134,6 @@
      boolean processingLeadingWhitespace =
                        ((edgeTreatmentFlags & SUPPRESS_LEADING_WS) != 0);
      boolean seenWhitespace = ((edgeTreatmentFlags & CARRY_WS) != 0);
-     boolean suppressTrailingWhitespace =
-                       ((edgeTreatmentFlags & SUPPRESS_TRAILING_WS) != 0);
      int currPos = start;
      int limit = start+length;