testsuite: Update error messages in sve/acle/general-c

The “previous definition of 'x'” notes now include the type
of the original definition before “was here”.  There's not really
any need to hard-code that much of the message in the ACLE tests,
so this patch just removes the “was here” from the match string.

gcc/testsuite/

	* gcc.target/aarch64/sve/acle/general-c/func_redef_1.c: Remove
	"was here" from error message.
	* gcc.target/aarch64/sve/acle/general-c/func_redef_2.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/func_redef_3.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/func_redef_6.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_1.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_2.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_3.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_4.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_5.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_6.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_8.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_9.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_10.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/type_redef_13.c: Likewise.