Removed some lingering references to ctype.

std_consolidated_header.dd

@@ -55,7 +55,6 @@ $(DIVID top,
 	$(LI <a href="std_contracts.html" title="Think assert">std.contracts</a>)
 	$(LI <a href="std_conv.html" title="Conversion of strings to integers">std.conv</a>)
 	$(LI <a href="std_cpuid.html" title="CPU identification">std.cpuid</a>)
-	$(LI <a href="std_ctype.html" title="Simple character classification">std.ctype</a>)
 	$(LI <a href="std_date.html" title="Date and time functions">std.date</a>)
 	$(LI <a href="std_datetime.html" title="Date and time-related types and functions">std.datetime</a>)
 	$(LI <a href="std_demangle.html" title="Demangle D names">std.demangle</a>)
@@ -65,7 +64,6 @@ $(DIVID top,
 	$(LI <a href="std_format.html" title="Formatted conversions of values to strings">std.format</a>)
 	$(LI <a href="std_functional.html" title="functional">std.functional</a>)
 	$(LI <a href="std_getopt.html" title="Command line options">std.getopt</a>)
-	$(LI <a href="std_gregorian.html" title="Gregorian Calendar">std.gregorian</a>)
 	$(LI <a href="std_json.html" title="JSON reader">std.json</a>)
 	$(LI <a href="std_math.html" title="the usual math functions">std.math</a>)
 	$(LI <a href="std_mathspecial.html" title="mathematical special functions">std.mathspecial</a>)