diff --git a/var/spack/repos/builtin/packages/amdblis/blis-4.0_gcc_clang_znver4.patch b/var/spack/repos/builtin/packages/amdblis/blis-4.0_gcc_clang_znver4.patch
deleted file mode 100644
index 31f71bf8c5a..00000000000
--- a/var/spack/repos/builtin/packages/amdblis/blis-4.0_gcc_clang_znver4.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-diff -Naur a/config/zen4/make_defs.mk b/config/zen4/make_defs.mk
---- a/config/zen4/make_defs.mk	2022-11-12 13:05:45.000000000 +0000
-+++ b/config/zen4/make_defs.mk	2023-05-12 14:40:10.848359434 +0000
-@@ -73,6 +73,15 @@
- 
- 
- # gcc 11.0 or later:
-+ifeq ($(shell test $(GCC_VERSION) -ge 13; echo $$?),0)
-+ifneq ($(DEBUG_TYPE),noopt)
-+CKOPTFLAGS     := -O2 -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-loops -fsplit-paths -ftree-loop-distribution -funswitch-loops -fvect-cost-model=dynamic -fversion-loops-for-strides -fomit-frame-pointer
-+endif
-+
-+CKVECFLAGS     +=  -march=znver4 -mfpmath=sse
-+CRVECFLAGS     +=  -march=znver4
-+
-+else
- ifeq ($(shell test $(GCC_VERSION) -ge 11; echo $$?),0)
- # Update CKOPTFLAGS for gcc 11+ to use O3 optimization without
- # -ftree-partial-pre flag. This flag results in suboptimal code
-@@ -100,6 +109,7 @@
- endif # GCC 8
- endif # GCC 9
- endif # GCC 11
-+endif # GCC 13
- else
- ifeq ($(CC_VENDOR),clang)
- 
-@@ -132,6 +142,16 @@
- #if compiling with clang
- VENDOR_STRING := $(strip $(shell ${CC_VENDOR} --version | egrep -o '[0-9]+\.[0-9]+\.?[0-9]*'))
- CC_MAJOR := $(shell (echo ${VENDOR_STRING} | cut -d. -f1))
-+#clang 16 or later:
-+ifeq ($(shell test $(CC_MAJOR) -ge 16; echo $$?),0)
-+CKVECFLAGS += -march=znver4
-+CRVECFLAGS += -march=znver4
-+else
-+#clang 12 or later:
-+ifeq ($(shell test $(CC_MAJOR) -ge 12; echo $$?),0)
-+CKVECFLAGS += -march=znver3 -mavx512f -mavx512dq -mavx512bw -mavx512vl -mavx512vnni -mavx512bf16 -mfpmath=sse -falign-loops=64
-+CRVECFLAGS += -march=znver3
-+else
- #clang 9.0 or later:
- ifeq ($(shell test $(CC_MAJOR) -ge 9; echo $$?),0)
- CKVECFLAGS += -march=znver2
-@@ -139,7 +159,9 @@
- else
- CKVECFLAGS += -march=znver1
- CRVECFLAGS += -march=znver1
--endif # ge 9
-+endif # clang 9
-+endif # clang 12
-+endif # clang 16
- endif # aocc 2
- endif # aocc 3
- endif # aocc 4