package/tcf-agent: drop bogus BR2_powerpcle

The inexistent symbol is referenced by commit from 2018:
'd0d04b4c5a tcf-agent: new package'

Cc: Eugene Tarassov <eugene@largest.net>
Cc: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/tcf-agent/Config.in

@@ -27,7 +27,7 @@ config BR2_PACKAGE_TCF_AGENT_ARCH
 	default "i686"       if BR2_i386 && BR2_ARCH="i686"
 	default "i386"       if BR2_i386 && !BR2_ARCH="i686"
 	default "x86_64"     if BR2_x86_64
-	default "powerpc"    if BR2_powerpc || BR2_powerpcle
+	default "powerpc"    if BR2_powerpc
 	default "ppc64"      if BR2_powerpc64 || BR2_powerpc64le
 	default "microblaze" if BR2_microblaze || BR2_microblazeel