RFR: JDK-8147091 Remove debug output in basics.m4

[Magnus Ihse Bursie]

Unfortunately a piece of debug output slipped into basics.m4 some time ago.

That it hasn't been discovered until now is probably proof that nobody 
reads the output from configure. :-&

Bug: https://bugs.openjdk.java.net/browse/JDK-8147091
Diff inline:

diff --git a/common/autoconf/basics.m4 b/common/autoconf/basics.m4
--- a/common/autoconf/basics.m4
+++ b/common/autoconf/basics.m4
@@ -1122,7 +1122,6 @@

    # Move configure.log from current directory to the build output root
    if test -e ./configure.log; then
-    echo found it
      $MV -f ./configure.log "$OUTPUT_ROOT/configure.log" 2> /dev/null
    fi

/Magnus