Reverting commits between `git merge-head master refactor` and master.

This is a combination of 11 revert commits, and allows for a clean
merge of the work done in the refactor branch.

The combined commit messages follow.

Revert "Committing basic ring_buffer test."

This reverts commit 987fa5f433e0cd41b1621dad8b4e331cf82d49f3.

Revert "qa-slave-shield.cpp and test-session.cpp fixes for Mini and RET6 Edition."

This reverts commit cdd367bdd264c9e19180032c119850fbba2115ba.

Revert "Brought examples/ up to date; PIN_MAP bugfix for D24."

This reverts commit b4c2d4514c6d52cac8a649c5d5c24b68a3c0a416.

Revert "Separated GPIO config to a separate FSMC routine."

This reverts commit 744848ad0fc33eed66acc44e41c3c9d646c5b100.

Revert "Slightly faster RAM writes (6.5MHz)."

This reverts commit 8ba0b6bb065acb4aff26bc9c838de5f37515caf1.

Revert "FSMC working but slow (~6 MHz)."

This reverts commit 0dc9490cf4f4f10a23b08fef1728773f10c1b76a.

Revert "Maple Mini ERROR_LED_PIN fix."

This reverts commit 07d437706840901db1e09ff0ab88229c67c1fa8a.

Revert "Fixing USBSerial::read(void*, uint32) return value (thanks, Crenn!)"

This reverts commit 3ba7196712a5bfe4fe1166b6c34d49c3d7254568.

Revert "Trivial gpio_init() bugfix"

This reverts commit f6ce003bb935f26eeefa54acf7c2ae6afaabd871.

Revert "Trivial changes to test-session.cpp"

This reverts commit a32a37b121ac7e62660d2a83fe67c857fe705122.

Revert ".gitignore: Ignore cscope* files"

This reverts commit d8c72c17bd6d7416a0846e69f4f5ae5cb229d58e.

1 files changed, 0 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index a953088..a709696 100644
--- a/Makefile
+++ b/Makefile
@@ -21,10 +21,6 @@ ifeq ($(BOARD), maple_mini)
    MCU := STM32F103CB
    PRODUCT_ID := 0003
 endif
-ifeq ($(BOARD), maple_RET6)
-   MCU := STM32F103RE
-   PRODUCT_ID := 0003
-endif
 
 # Useful paths
 ifeq ($(LIB_MAPLE_HOME),)