Remove prcontext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81427 91177308-0d34-0410-b5e6-96231b3b80d8

test/Scripts/prcontext.tcl

@@ -1,36 +0,0 @@
-#!/usr/bin/tclsh
-#
-# Usage:
-# prcontext <pattern> <# lines of context>
-# (for platforms that don't have grep -C)
-
-
-#
-# Get the arguments
-#
-set pattern [lindex $argv 0]
-set num [lindex $argv 1]
-
-
-#
-# Get all of the lines in the file.
-#
-set lines [split [read stdin] \n]
-
-set index 0
-foreach line $lines {
-    if { [regexp $pattern $line match matchline] } {
-        if { [ expr [expr $index - $num] < 0 ] } {
-            set bottom 0
-        } else {
-            set bottom [expr $index - $num]
-        }
-        set endLineNum [ expr [expr $index + $num] + 1]
-        while {$bottom < $endLineNum} {
-            set output [lindex $lines $bottom]
-            puts $output
-            set bottom [expr $bottom + 1]
-        }
-    }
-    set index [expr $index + 1]
-}