cmake: remove deprecated GCCARMEMB_TOOLCHAIN_PATH

Remove deprecated GCCARMEMB_TOOLCHAIN_PATH.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
diff --git a/cmake/toolchain/gnuarmemb/generic.cmake b/cmake/toolchain/gnuarmemb/generic.cmake
index 1ea30ab..6eb04b3 100644
--- a/cmake/toolchain/gnuarmemb/generic.cmake
+++ b/cmake/toolchain/gnuarmemb/generic.cmake
@@ -1,13 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
-# Until we completely deprecate it
-if(NOT DEFINED ENV{GNUARMEMB_TOOLCHAIN_PATH})
-  if(DEFINED ENV{GCCARMEMB_TOOLCHAIN_PATH})
-    message(WARNING "GCCARMEMB_TOOLCHAIN_PATH is deprecated, please use GNUARMEMB_TOOLCHAIN_PATH instead")
-    set(GNUARMEMB_TOOLCHAIN_PATH $ENV{GCCARMEMB_TOOLCHAIN_PATH})
-  endif()
-endif()
-
 set_ifndef(GNUARMEMB_TOOLCHAIN_PATH "$ENV{GNUARMEMB_TOOLCHAIN_PATH}")
 set(       GNUARMEMB_TOOLCHAIN_PATH ${GNUARMEMB_TOOLCHAIN_PATH} CACHE PATH "gnuarmemb install directory")
 assert(    GNUARMEMB_TOOLCHAIN_PATH "GNUARMEMB_TOOLCHAIN_PATH is not set")
diff --git a/doc/releases/release-notes-3.2.rst b/doc/releases/release-notes-3.2.rst
index 58c96e7..dcbedb0 100644
--- a/doc/releases/release-notes-3.2.rst
+++ b/doc/releases/release-notes-3.2.rst
@@ -237,6 +237,8 @@
 Build System
 ************
 
+* Removed deprecated ``GCCARMEMB_TOOLCHAIN_PATH`` setting
+
 Devicetree
 **********