gas: don't duplicate include of config.h

[Alan Modra]

The header is included by as.h, don't include it again.

diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c
index 3c9cb7329d2..7e501404ed7 100644
--- a/gas/config/tc-loongarch.c
+++ b/gas/config/tc-loongarch.c
@@ -27,7 +27,6 @@
 #include "opcode/loongarch.h"
 #include "obj-elf.h"
 #include "bfd/elfxx-loongarch.h"
-#include "config.h"
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index 4440fb7cafb..afe8e1a6918 100644
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -23,7 +23,6 @@
    02110-1301, USA.  */
 
 #include "as.h"
-#include "config.h"
 #include "subsegs.h"
 #include "safe-ctype.h"
 
diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
index 1227a719571..17205db68b2 100644
--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -21,7 +21,6 @@
    see <http://www.gnu.org/licenses/>.  */
 
 #include "as.h"
-#include "config.h"
 #include "subsegs.h"
 #include "safe-ctype.h"
 
diff --git a/gas/config/tc-score7.c b/gas/config/tc-score7.c
index 032e6ed16b3..41c1790bc72 100644
--- a/gas/config/tc-score7.c
+++ b/gas/config/tc-score7.c
@@ -23,7 +23,6 @@
    MA 02110-1301, USA.  */
 
 #include "as.h"
-#include "config.h"
 #include "subsegs.h"
 #include "safe-ctype.h"
 #include "opcode/score-inst.h"

-- 
Alan Modra