Removes non-functional meson debug option.

It looks like the debug mode was copied literally from the old
Makefiles, which interacts poorly with meson and leads to builds
with "-O0 -g -O3".

The correct way to do this is to use "-Dbuildtype=release" or
"-Dbuildtype=debug" during configuration. Set the default builds
made by scripts/build to release.

meson.build

@@ -306,17 +306,10 @@ softfloat3_dep = dependency('softfloat3', version: '>=3.0.0', fallback: ['softfl
 libuv_dep = dependency('libuv', version: '>=1.8.0', fallback:['libuv', 'libuv_dep'])
 libh2o_dep = dependency('libh2o', version: '>=0.13.3', fallback: ['libh2o', 'libh2o_dep'])
 
-opt_flags = []
-if get_option('debug')
-  opt_flags = ['-g']
-else
-  opt_flags = ['-O3']
-endif
-
 executable('urbit',
 sources : sources,
 include_directories : incdir,
-c_args : opt_flags + os_c_flags,
+c_args : os_c_flags,
 link_args: os_link_flags,
 dependencies: [openssl_dep,
                curl_dep,

meson_options.txt

@@ -1 +0,0 @@
-option('debug', type:'boolean', value: false)

scripts/build

@@ -1,5 +1,5 @@
 #!/bin/bash
 
 mkdir ./build &> /dev/null
-meson . ./build
+meson . ./build -Dbuildtype=release
 ninja -C build