remove gcc15

PKGBUILD

@@ -99,7 +99,6 @@ makedepends=(
     'cmake'
     'cuda'
     'ffnvcodec-headers'
-    'gcc15'
     'git'
     'gmp'
     'libgl'
@@ -145,17 +144,12 @@ build() {
     local _pkgconfigdir="${_stagingdir}/lib/pkgconfig"
     export PKG_CONFIG_PATH="${_pkgconfigdir}${PKG_CONFIG_PATH:+":${PKG_CONFIG_PATH}"}"
 
-    export CC=gcc-15
-    export CXX=g++-15
-
     local -a _cmake_opts=(
         '-GUnix Makefiles'
         '-DBUILD_SHARED_LIBS:BOOL=OFF'
         '-DCMAKE_BUILD_TYPE:STRING=None'
         "-DCMAKE_INSTALL_PREFIX:PATH=${_stagingdir}"
         '-DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=ON'
-        '-DCMAKE_C_COMPILER=gcc-15'
-        '-DCMAKE_CXX_COMPILER=g++-15'
         '-Wno-dev')
 
     # ffmpeg requires lensfun git master, but lensfun-git package wrongly installs its files to non-standard locations:
@@ -179,8 +173,7 @@ build() {
         -DWHISPER_BUILD_EXAMPLES:BOOL='OFF' \
         -DWHISPER_BUILD_TESTS:BOOL='OFF' \
         -DGGML_CUDA:BOOL='ON' \
-        -DCMAKE_CUDA_ARCHITECTURES='89' \
-        -DCMAKE_CUDA_HOST_COMPILER=g++-15
+        -DCMAKE_CUDA_ARCHITECTURES='89'
     cmake --build build/whisper.cpp --target install
 
     cd "ffmpeg-${pkgver}"
@@ -191,8 +184,6 @@ build() {
 
     ./configure \
         --prefix='/usr' \
-        --cc=gcc-15 \
-        --cxx=g++-15 \
         --enable-lto \
         \
         --disable-rpath \