[Ada] Remove section on pragma No_Run_Time

This pragma has been long obsolescent and confuses users.

2019-09-17  Ed Falis  <falis@adacore.com>

gcc/ada/

	* doc/gnat_rm/implementation_defined_pragmas.rst: Remove
	section.
	* gnat_rm.texi, gnat_ugn.texi: Regenerate.

From-SVN: r275784

gcc/ada/ChangeLog

+2019-09-17  Ed Falis  <falis@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst: Remove
+	section.
+	* gnat_rm.texi, gnat_ugn.texi: Regenerate.
+
 2019-09-17  Vadim Godunko  <godunko@adacore.com>
 
 	* libgnat/g-exptty.ads (Close_Input): New subprogram.

gcc/ada/doc/gnat_rm/implementation_defined_pragmas.rst

@@ -4049,22 +4049,6 @@ Note that in Ada 2005 mode, this pragma is part of the language. It is
 available in all earlier versions of Ada as an implementation-defined
 pragma.
 
-Pragma No_Run_Time
-==================
-
-Syntax:
-
-
-.. code-block:: ada
-
-  pragma No_Run_Time;
-
-
-This is an obsolete configuration pragma that historically was used to
-set up a runtime library with no object code. It is now used only for
-internal testing. The pragma has been superseded by the reconfigurable
-runtime capability of GNAT.
-
 Pragma No_Strict_Aliasing
 =========================
 

gcc/ada/gnat_ugn.texi

@@ -21,7 +21,7 @@
 
 @copying
 @quotation
-GNAT User's Guide for Native Platforms , Aug 01, 2019
+GNAT User's Guide for Native Platforms , Sep 13, 2019
 
 AdaCore
 
@@ -13661,7 +13661,7 @@ in the source text.
 
 The set of style check switches is set to match that used by the GNAT sources.
 This may be useful when developing code that is eventually intended to be
-incorporated into GNAT. Currently this is equivalent to @code{-gnatwydISux})
+incorporated into GNAT. Currently this is equivalent to @code{-gnatyydISux})
 but additional style switches may be added to this set in the future without
 advance notice.
 @end table