common: remove deprecated gnome-terminal flag

On recent versions of gnome-terminal you will get this warning:

"Option "-t" is deprecated and might be removed in a later version of
gnome-terminal."

There seems to be no substitution for it, therefore let's just get rid
of it.

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
diff --git a/common.mk b/common.mk
index 00d6146..0eced07 100644
--- a/common.mk
+++ b/common.mk
@@ -343,8 +343,6 @@
 	@echo
 endef
 
-# Note: Using the LAUNCH_TERMINAL environment variable, it is not currently possible to set 
-# different titles for the terminals because there is no any common way among all the terminals
 ifneq (, $(LAUNCH_TERMINAL))
 define launch-terminal
 	@nc -z  127.0.0.1 $(1) || \
@@ -354,11 +352,9 @@
 gnome-terminal := $(shell command -v gnome-terminal 2>/dev/null)
 xterm := $(shell command -v xterm 2>/dev/null)
 ifdef gnome-terminal
-# Note: the title option (-t) is ignored with gnome-terminal versions
-# >= 3.14 and < 3.20
 define launch-terminal
 	@nc -z  127.0.0.1 $(1) || \
-	$(gnome-terminal) -t "$(2)" -x $(SOC_TERM_PATH)/soc_term $(1) &
+	$(gnome-terminal) -x $(SOC_TERM_PATH)/soc_term $(1) &
 endef
 else
 ifdef xterm