Remove FW API 1 files

FW API 1 is nowadays unsupported, remove them altogether.
diff --git a/ath10k/QCA988X/hw2.0/firmware.bin b/ath10k/QCA988X/hw2.0/firmware.bin
deleted file mode 100755
index 08af68c..0000000
--- a/ath10k/QCA988X/hw2.0/firmware.bin
+++ /dev/null
Binary files differ
diff --git a/ath10k/QCA988X/hw2.0/otp.bin b/ath10k/QCA988X/hw2.0/otp.bin
deleted file mode 100755
index 94b11a2..0000000
--- a/ath10k/QCA988X/hw2.0/otp.bin
+++ /dev/null
Binary files differ