Remove limited built-in http support.

The original html2text doesn't support any complicated HTTP queries and
answers. The Debian version of html2text doesn't provide http support
at all.

However, you can easily operate by using the curl or wget packages:

curl -s http://www.server.org/aaa/bbb/ccc.html | html2text
wget http://www.server.org/aaa/bbb/ccc.html -O- | html2text

Index: html2text-1.3.2a/html2text.C
===================================================================
--- html2text.C
+++ html2text.C
@@ -36,18 +36,20 @@
 
 
 #include <iostream>
+#include <fstream>
 #include <string.h>
 #include <stdlib.h>
 
 #include "html.h"
 #include "HTMLControl.h"
-#include "urlistream.h"
+//#include "urlistream.h"
 #include "format.h"
 
 #define stringify(x) stringify2(x)
 #define stringify2(x) #x
 
 /* ------------------------------------------------------------------------- */
+using std::ifstream;
 
 class MyParser : public HTMLControl {
 
@@ -55,7 +57,7 @@
   enum { PRINT_AS_ASCII, UNPARSE, SYNTAX_CHECK };
 
   MyParser(
-    urlistream &is_,
+    istream &is_,
     bool       debug_scanner_,
     bool       debug_parser_,
     ostream    &os_,
@@ -352,15 +354,14 @@
     }
 
     istream    *isp;
-    urlistream uis;
+    ifstream     uis;
 
     uis.open(input_url);
     if (!uis.is_open()) {
       std::cerr
-        << "Opening input URL \""
+        << "Cannot open input file \""
 	<< input_url
-        << "\": "
-        << uis.open_error()
+        << "\"."
         << std::endl;
       exit(1);
     }
Index: html2text-1.3.2a/HTMLControl.h
===================================================================
--- HTMLControl.h
+++ HTMLControl.h
@@ -38,7 +38,6 @@
 /* ------------------------------------------------------------------------- */
 
 #include "HTMLParser.h"
-#include "urlistream.h"
 #include <istream>
 
 using std::istream;
@@ -48,7 +47,7 @@
 class HTMLControl : public HTMLParser {
 
 public:
-  HTMLControl(urlistream &is_, bool debug_scanner_, bool debug_parser_) :
+  HTMLControl(istream &is_, bool debug_scanner_, bool debug_parser_) :
     HTMLParser(),
     current_line(1),
     current_column(0),
@@ -84,7 +83,7 @@
 
   bool debug_scanner;
 
-  urlistream &is;
+  istream &is;
   int     ungotten_chars[5];
   int     number_of_ungotten_chars;
 };
Index: html2text-1.3.2a/Makefile.in
===================================================================
--- Makefile.in
+++ Makefile.in
@@ -65,7 +65,7 @@
 	@echo '"/usr/local/bin", "/usr/local/man/man1" and "/usr/local/man/man5").';
 	@echo
 
-OBJS = html2text.o html.o HTMLControl.o HTMLParser.o Area.o format.o sgml.o table.o urlistream.o Properties.o cmp_nocase.o
+OBJS = html2text.o html.o HTMLControl.o HTMLParser.o Area.o format.o sgml.o table.o Properties.o cmp_nocase.o
 
 html2text : $(OBJS) $(LIBSTDCXX_LIBS)
 	$(CXX) $(LDFLAGS) $(OBJS) $(LOADLIBES) $(LDLIBS) -o $@