Remove old READMEs.

src/bin/pg_dump/README.dhb

-version 1.13.dhb.2 README
----------------------------
-
-* Fixed dumpTable output to output lengths for char and varchar types!
-
-* Added single. quote to twin single quote expansion for 'insert' string
-  mode.
-
-version 1.13.dhb README
--------------------------
- 
-This is a modified version of the pg_dump.c program that is distributed with
-pg95 1.01.  Modifications include:
-
-* Applied 'insert string' patch from "Marc G. Fournier" <scrappy@ki.net>
-
-    (see insert.patch & README.scrappy for info on this patch)
-
-* Added '-t table' option
-
-    By specifying '-t table' on the command line you can output only the
-    schema (table & index defs) and data for one table of a database.
-
-    Example:
-
-      pg_dump -t descriptions software
-
-* Added '-a' option
-
-    This is the opposite of the -S option.  By specifying -a you can output
-    only the database data and not the schema.
-
-    Example:
-
-      pg_dump -a zipcodes
-
-* Added '-da' option
-
-    Marc's '-d' option adds the ability to output insert strings,  By using
-    the 'a' sub-parameter you can also place the attribute names in the
-    insert strings.  Basically,  this is useful because ALTER TABLE is
-    broken in pg95 1.01.
-
-    NOTE: This will create some long hairy output files!  Be sure to pipe
-    through compress or gzip before outputing to disk.
-
-    Example:
-
-      pg_dump -da -t oldfile mydatabase | gzip > oldfile.data.gz
-
-Comments:
-
-  -----------------------------------------------------
-  David Bennett, Bennett Software Solutions
-  2608 NW Fawn Drive Blue Springs, MO  64015
-  Phone: 816-228-8788, Fax: 816-228-3204
-  dave@bensoft.com, http://bensoft.com
-  PGP key at ftp://bensoft.com/pub/pgp/daveskey.txt

src/bin/pg_dump/README.scrappy

-  Here is what Marc had to say about insert.patch included in this archive....
-
-  In preparation of finally moving all my 1.0 databases over to a 1.01
-  database server, I looked at pg_dump and found that, unless I missed
-  something, it didn't *easily* do what I wanted, which was to dump a database
-  to a file, and then reload it again on another server (short-term)...but,
-  also, there doesn't seem to be any mechanism for dumping the database to a
-  file that can be backed up and quickly reloaded again.
-
-  So, I spent the past several hours modifying pg_dump so that it has an extra
-  switch for dumping the data in valid 'insert' strings, so that you can
-  quickly and easily reload a database.
-
-  So, now the output looks like:
-
-    CREATE TABLE scrap (integer int4, real float4, text text) archive = none;
-    insert into scrap values (1, 1, 'text');
-
-  Now, the hard part was figuring out what types are available, so that the
-  insert string works properly for char vs numberic data fields. As such, the
-  switch statement I'm using in dumpClasses() for this may be missing values
-  for numeric fields (I'm using PQftype() to figure out numeric vs non-numeric
-  fields)