[Bug 3974] typos in input-file for trivial-{1,2,3,4} tests

http://www.w3.org/Bugs/Public/show_bug.cgi?id=3974

           Summary: typos in input-file for trivial-{1,2,3,4} tests
           Product: XML Query Test Suite
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XML Query Test Suite
        AssignedTo: andrew.eisenberg@us.ibm.com
        ReportedBy: per@bothner.com
         QAContact: public-qt-comments@w3.org


The tests trivial-1 and trivial-2 both use the same query
trivial-1.xq, and both declare an input-file binding to
the variable "input-context".  But trivial-1.xq needs an
external variable $input-context1.

Likewise, the tests trivial-3 and trivial-4 both declare
the variable "input-context", and both use trivial-3.xq,
which needs $input-context1.

None of the queries actually *uses* $input-context1, so I'd
just remove the variable declarations.