Delete Visual Studio build files

source/configure

 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69 for ICU 56.1.
 #
 # Report bugs to <http://icu-project.org/bugs>.
 #
 #  Copyright (c) 1999-2015, International Business Machines Corporation and others. All Rights Reserved.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ skipping 7775 matching lines @@
 
 # append all config cppflags
 CPPFLAGS="$CPPFLAGS $CONFIG_CPPFLAGS $UCONFIG_CPPFLAGS"
 
 echo "CPPFLAGS=$CPPFLAGS"
 echo "CFLAGS=$CFLAGS"
 echo "CXXFLAGS=$CXXFLAGS"
 
 
 # output the Makefiles
-ac_config_files="$ac_config_files icudefs.mk Makefile data/pkgdataMakefile config/Makefile.inc config/icu.pc config/pkgdataMakefile data/Makefile stubdata/Makefile common/Makefile i18n/Makefile io/Makefile extra/Makefile extra/uconv/Makefile extra/uconv/pkgdataMakefile extra/scrptrun/Makefile tools/Makefile tools/ctestfw/Makefile tools/toolutil/Makefile tools/makeconv/Makefile tools/genrb/Makefile tools/genccode/Makefile tools/gencmn/Makefile tools/gencnval/Makefile tools/gendict/Makefile tools/gentest/Makefile tools/gennorm2/Makefile tools/genbrk/Makefile tools/gensprep/Makefile tools/icuinfo/Makefile tools/icupkg/Makefile tools/icuswap/Makefile tools/pkgdata/Makefile tools/tzcode/Makefile tools/gencfu/Makefile test/Makefile test/compat/Makefile test/testdata/Makefile test/testdata/pkgdataMakefile test/hdrtst/Makefile test/intltest/Makefile test/cintltst/Makefile test/iotest/Makefile test/letest/Makefile test/perf/Makefile test/perf/collationperf/Makefile test/perf/collperf/Makefile test/perf/collperf2/Makefile test/perf/dicttrieperf/Makefile test/perf/ubrkperf/Makefile test/perf/charperf/Makefile test/perf/convperf/Makefile test/perf/normperf/Makefile test/perf/DateFmtPerf/Makefile test/perf/howExpensiveIs/Makefile test/perf/strsrchperf/Makefile test/perf/unisetperf/Makefile test/perf/usetperf/Makefile test/perf/ustrperf/Makefile test/perf/utfperf/Makefile test/perf/utrie2perf/Makefile test/perf/leperf/Makefile samples/Makefile samples/date/Makefile samples/cal/Makefile samples/layout/Makefile"
+ac_config_files="$ac_config_files icudefs.mk Makefile data/pkgdataMakefile config/Makefile.inc config/icu.pc config/pkgdataMakefile data/Makefile stubdata/Makefile common/Makefile i18n/Makefile io/Makefile extra/Makefile extra/uconv/Makefile extra/uconv/pkgdataMakefile extra/scrptrun/Makefile tools/Makefile tools/ctestfw/Makefile tools/toolutil/Makefile tools/makeconv/Makefile tools/genrb/Makefile tools/genccode/Makefile tools/gencmn/Makefile tools/gencnval/Makefile tools/gendict/Makefile tools/gentest/Makefile tools/gennorm2/Makefile tools/genbrk/Makefile tools/gensprep/Makefile tools/icuinfo/Makefile tools/icupkg/Makefile tools/icuswap/Makefile tools/pkgdata/Makefile tools/tzcode/Makefile tools/gencfu/Makefile samples/Makefile samples/date/Makefile samples/cal/Makefile samples/layout/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
 # scripts and configure runs, see configure's option --config-cache.
 # It is not useful on other systems.  If it contains results you don't
 # want to keep, you may remove or edit it.
 #
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
@@ skipping 1294 matching lines @@
    echo "C++ apps may want to build with CXXFLAGS = ${UCONFIG_CXXFLAGS}"
 fi
 
 if test "$tools" = false;
 then
         echo "## Note: you have disabled ICU's tools. This ICU cannot build its own data or tests."
         echo "## Expect build failures in the 'data', 'test', and other directories."
 fi
 
 $as_unset _CXX_CXXSUFFIX