Remove build systems other than CMake

Make it clear that CMake is the only supported build system.

Signed-off-by: Kevin Petit <kevin.petit@arm.com>

test_conformance/math_brute_force/Jamfile

@@ -1,36 +0,0 @@
-project
-    : requirements
-      -<library>/harness//harness <use>/harness//harness
-      <library>/Runtime//OpenCL.lib
-#      <toolset>gcc:<cflags>-xc++
-      <toolset>msvc:<cflags>"/TP"
-    ;
-
-exe bruteforce
-    : binary.c
-      binary_i.c
-      binaryOperator.c
-      binary_two_results_i.c
-      FunctionList.c
-      i_unary.c
-      macro_binary.c
-      macro_unary.c
-      mad.c
-      main.c
-      reference_math.c
-      Sleep.c
-      ternary.c
-      unary.c
-      unary_two_results.c
-      unary_two_results_i.c
-      unary_u.c
-      Utility.c
-      /harness//mt19937.c
-    : <target-os>windows:<source>/harness//msvc9.c
-    ;
-
-install dist
-    : bruteforce
-    : <variant>debug:<location>$(DIST)/debug/tests/test_conformance/math_brute_force
-      <variant>release:<location>$(DIST)/release/tests/test_conformance/math_brute_force
-    ;

test_conformance/math_brute_force/Makefile

@@ -1,33 +0,0 @@
-ifdef BUILD_WITH_ATF
-ATF = -framework ATF
-USE_ATF = -DUSE_ATF
-endif
-
-CC = cc
-CFLAGS = -g -Wall -Wshorten-64-to-32 $(COMPILERFLAGS) ${RC_CFLAGS} ${USE_ATF}
-LIBRARIES = -framework OpenCL -framework ApplicationServices -framework IOKit -I/System/Library/Frameworks/OpenCL.framework/Headers ${RC_CFLAGS} ${ATF}
-
-release:
-	echo "Build Release"
-	$(CC) *.c ../../test_common/harness/mt19937.c ../../test_common/harness/rounding_mode.c ../../test_common/harness/ThreadPool.c -Os $(CFLAGS) -o bruteforce $(LIBRARIES)
-
-debug:
-	echo "Build Debug"
-	$(CC) *.c ../../test_common/harness/mt19937.c ../../test_common/harness/rounding_mode.c ../../test_common/harness/ThreadPool.c -O0 $(CFLAGS) -D_DEBUG=1 -o bruteforce_debug  $(LIBRARIES)
-
-test:	release
-	arch -i386 ./bruteforce -c > cpu.log	&
-	arch -i386 ./bruteforce -g > gpu.log	&
-	echo "Testing 32-bit mode in progress. This may take up to 1 day to complete. See cpu.log and gpu.log for results."
-
-test64:	release
-	arch -x86_64 ./bruteforce -c > cpu64.log	&
-	arch -x86_64 ./bruteforce -g > gpu64.log	&
-	echo "Testing 64-bit mode in progress. This may take up to 1 day to complete. See cpu64.log and gpu64.log for results."
-
-
-clean:
-	rm -f ./bruteforce_debug
-	rm -f ./bruteforce
-
-all:	release