main: Destroy static hash table

format_array_format_table has a static lifetime - it will be destroyed
by an atexit handler.

Signed-off-by: Yevhenii Kolesnikov <yevhenii.kolesnikov@globallogic.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
13 jobs for !1381 with fix/memleak_format_array_format_table_destroy in 38 minutes and 43 seconds (queued for 34 seconds)
latest detached
Status Job ID Name Coverage
  Containers Build
passed #432356
debian

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  Build+Test
passed #432365
meson-arm64

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passed #432364
meson-armhf

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passed #432358
meson-clang

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passed #432362
meson-clover

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passed #432366
meson-i386

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passed #432361
meson-main

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passed #432357
meson-swr-glvnd

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passed #432363
meson-vulkan

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passed #432368
scons-llvm

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passed #432367
scons-nollvm

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passed #432359
scons-swr

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passed #432360
scons-win64

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