feat(sgi): clean up redundant runtime config for sgi575

For sgi575, remove the fetch of SGI-575_cmn600.yml from binary
downloads path as this is already present within the corresponding
models directory.

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: I0cc09941f29ab57d1efcb9696b8b515169fa80f2
diff --git a/run_config/fvp-sgi575 b/run_config/fvp-sgi575
index e0b1e61..8e04044 100644
--- a/run_config/fvp-sgi575
+++ b/run_config/fvp-sgi575
@@ -24,9 +24,6 @@
 		archive_file "scp_rom.bin"
 	fi
 
-	url="$tfa_downloads/SGI-575_cmn600.yml" fetch_file
-	archive_file "SGI-575_cmn600.yml"
-
 	# Hold terminal_uart_aon
 	uart="2" file="hold_uart.exp" track_expect
 }