Revert "fastboot: Add DTS partition support for 'flashall' command"

This reverts commit de8c08c612a84eb0a834f5809cb4b4af7480d5da.

The FP2 build system creates a dt.img to combine it with the boot and
recovery images, not to flash it to the device directly.

Issue: FP2P-110
Change-Id: I4bb4cdc8f8decf2e5268ebec3918a034d7b842bf
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index e89586f..03850a3 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -122,7 +122,6 @@
     { "boot",     "boot.img",         "boot.sig",     "boot",     false, false },
     { nullptr,    "boot_other.img",   "boot.sig",     "boot",     true,  true  },
     { "dtbo",     "dtbo.img",         "dtbo.sig",     "dtbo",     true,  false },
-    { "dts",      "dt.img",           "dt.sig",       "dts",      true,  false },
     { "odm",      "odm.img",          "odm.sig",      "odm",      true,  false },
     { "product",  "product.img",      "product.sig",  "product",  true,  false },
     { "recovery", "recovery.img",     "recovery.sig", "recovery", true,  false },