Doc: remove bogus <indexterm> items.

Copy-and-pasteo in 665c5855e, evidently.  The 9.6 docs toolchain
whined about duplicate index entries, though our modern toolchain
doesn't.  In any case, these GUCs surely are not about the
default settings of these values.

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 600359ed3975c87e6fe5a08d7bb46e8d72379567..924044eabde780057aeb93e8d4c42983833e3add 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -6635,7 +6635,6 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       <term><varname>transaction_read_only</varname> (<type>boolean</type>)
       <indexterm>
        <primary>read-only transaction</primary>
-       <secondary>setting default</secondary>
       </indexterm>
       <indexterm>
        <primary><varname>transaction_read_only</varname> configuration parameter</primary>
@@ -6656,7 +6655,6 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       <term><varname>transaction_deferrable</varname> (<type>boolean</type>)
       <indexterm>
        <primary>deferrable transaction</primary>
-       <secondary>setting default</secondary>
       </indexterm>
       <indexterm>
        <primary><varname>transaction_deferrable</varname> configuration parameter</primary>