Revert "Cumulative patch from commit 4ec1fd8e42bad9390f14a58225b6e5f6fb691950"

This reverts commit 78a5dac804c22aa6e4ec8226a864d3b0d6ccddbb.

Test: None
diff --git a/src/common/version.h b/src/common/version.h
index 16c1004..ae5c9d4 100644
--- a/src/common/version.h
+++ b/src/common/version.h
@@ -9,6 +9,6 @@
 #define GIT_VERSION_STR_POSTFIX ""
 #endif /* GIT_VERSION_STR_POSTFIX */
 
-#define VERSION_STR "2.7-devel" VERSION_STR_POSTFIX GIT_VERSION_STR_POSTFIX
+#define VERSION_STR "2.6-devel" VERSION_STR_POSTFIX GIT_VERSION_STR_POSTFIX
 
 #endif /* VERSION_H */